| 1 | #include <stdio.h> |
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| 2 | #include <fcntl.h> |
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| 3 | |
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| 4 | #define STANDARD_ERROR 2 |
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| 5 | |
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| 6 | #define STANDARD_OUTPUT 1 |
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| 7 | |
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| 8 | #include "mpi.h" |
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| 9 | #include "rsl_lite.h" |
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| 10 | |
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| 11 | #define F_PACK |
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| 12 | |
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| 13 | static int yp_curs, ym_curs, xp_curs, xm_curs ; |
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| 14 | |
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| 15 | RSL_LITE_INIT_PERIOD ( |
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| 16 | int * Fcomm0, |
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| 17 | int * shw0, |
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| 18 | int * n3dR0, int *n2dR0, int * typesizeR0 , |
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| 19 | int * n3dI0, int *n2dI0, int * typesizeI0 , |
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| 20 | int * n3dD0, int *n2dD0, int * typesizeD0 , |
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| 21 | int * n3dL0, int *n2dL0, int * typesizeL0 , |
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| 22 | int * me0, int * np0 , int * np_x0 , int * np_y0 , |
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| 23 | int * ips0 , int * ipe0 , int * jps0 , int * jpe0 , int * kps0 , int * kpe0 ) |
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| 24 | { |
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| 25 | int n3dR, n2dR, typesizeR ; |
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| 26 | int n3dI, n2dI, typesizeI ; |
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| 27 | int n3dD, n2dD, typesizeD ; |
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| 28 | int n3dL, n2dL, typesizeL ; |
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| 29 | int shw ; |
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| 30 | int me, np, np_x, np_y ; |
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| 31 | int ips , ipe , jps , jpe , kps , kpe ; |
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| 32 | int yp, ym, xp, xm ; |
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| 33 | int nbytes ; |
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| 34 | int coords[2] ; |
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| 35 | MPI_Comm comm, *comm0, dummy_comm ; |
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| 36 | |
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| 37 | comm0 = &dummy_comm ; |
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| 38 | *comm0 = MPI_Comm_f2c( *Fcomm0 ) ; |
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| 39 | |
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| 40 | shw = *shw0 ; |
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| 41 | n3dR = *n3dR0 ; n2dR = *n2dR0 ; typesizeR = *typesizeR0 ; |
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| 42 | n3dI = *n3dI0 ; n2dI = *n2dI0 ; typesizeI = *typesizeI0 ; |
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| 43 | n3dD = *n3dD0 ; n2dD = *n2dD0 ; typesizeD = *typesizeD0 ; |
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| 44 | n3dL = *n3dL0 ; n2dL = *n2dL0 ; typesizeL = *typesizeL0 ; |
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| 45 | me = *me0 ; np = *np0 ; np_x = *np_x0 ; np_y = *np_y0 ; |
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| 46 | ips = *ips0-1 ; ipe = *ipe0-1 ; jps = *jps0-1 ; jpe = *jpe0-1 ; kps = *kps0-1 ; kpe = *kpe0-1 ; |
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| 47 | |
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| 48 | #if 0 |
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| 49 | if ( np_y > 1 ) { |
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| 50 | nbytes = typesizeR*(ipe-ips+1+2*shw)*(shw+1)*(n3dR*(kpe-kps+1)+n2dR) + |
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| 51 | typesizeI*(ipe-ips+1+2*shw)*(shw+1)*(n3dI*(kpe-kps+1)+n2dI) + |
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| 52 | typesizeD*(ipe-ips+1+2*shw)*(shw+1)*(n3dD*(kpe-kps+1)+n2dD) + |
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| 53 | typesizeL*(ipe-ips+1+2*shw)*(shw+1)*(n3dL*(kpe-kps+1)+n2dL) ; |
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| 54 | MPI_Cart_shift( *comm0, 1, 1, &ym, &yp ) ; |
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| 55 | if ( yp != MPI_PROC_NULL ) { |
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| 56 | buffer_for_proc ( yp , nbytes, RSL_RECVBUF ) ; |
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| 57 | buffer_for_proc ( yp , nbytes, RSL_SENDBUF ) ; |
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| 58 | } |
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| 59 | if ( ym != MPI_PROC_NULL ) { |
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| 60 | buffer_for_proc ( ym , nbytes, RSL_RECVBUF ) ; |
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| 61 | buffer_for_proc ( ym , nbytes, RSL_SENDBUF ) ; |
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| 62 | } |
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| 63 | } |
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| 64 | #endif |
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| 65 | if ( np_x > 1 ) { |
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| 66 | nbytes = typesizeR*(jpe-jps+1+2*shw)*(shw+1)*(n3dR*(kpe-kps+1)+n2dR) + |
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| 67 | typesizeI*(jpe-jps+1+2*shw)*(shw+1)*(n3dI*(kpe-kps+1)+n2dI) + |
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| 68 | typesizeD*(jpe-jps+1+2*shw)*(shw+1)*(n3dD*(kpe-kps+1)+n2dD) + |
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| 69 | typesizeL*(jpe-jps+1+2*shw)*(shw+1)*(n3dL*(kpe-kps+1)+n2dL) ; |
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| 70 | |
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| 71 | /* |
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| 72 | this assumes that the topoology associated with the communicator is periodic |
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| 73 | the period routines should be called with "local_communicator_periodic", which |
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| 74 | is set up in module_dm.F for RSL_LITE. Registry generated code automaticall |
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| 75 | does this (gen_comms.c for RSL_LITE). |
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| 76 | */ |
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| 77 | |
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| 78 | MPI_Comm_rank( *comm0, &me ) ; |
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| 79 | MPI_Cart_coords( *comm0, me, 2, coords ) ; |
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| 80 | MPI_Cart_shift( *comm0, 1, 1, &xm, &xp ) ; |
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| 81 | if ( xm != MPI_PROC_NULL && coords[1] == np_x - 1 ) { /* process on right hand side of mesh */ |
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| 82 | buffer_for_proc ( xp , nbytes, RSL_RECVBUF ) ; |
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| 83 | buffer_for_proc ( xp , nbytes, RSL_SENDBUF ) ; |
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| 84 | } |
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| 85 | if ( xp != MPI_PROC_NULL && coords[1] == 0 ) { /* process on left hand side of mesh */ |
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| 86 | buffer_for_proc ( xm, nbytes, RSL_RECVBUF ) ; |
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| 87 | buffer_for_proc ( xm , nbytes, RSL_SENDBUF ) ; |
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| 88 | } |
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| 89 | } |
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| 90 | yp_curs = 0 ; ym_curs = 0 ; xp_curs = 0 ; xm_curs = 0 ; |
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| 91 | } |
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| 92 | |
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| 93 | RSL_LITE_PACK_PERIOD_X ( int* Fcomm0, char * buf , int * shw0 , int * typesize0 , int * xy0 , int * pu0 , char * memord , int * xstag0 , |
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| 94 | int *me0, int * np0 , int * np_x0 , int * np_y0 , |
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| 95 | int * ids0 , int * ide0 , int * jds0 , int * jde0 , int * kds0 , int * kde0 , |
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| 96 | int * ims0 , int * ime0 , int * jms0 , int * jme0 , int * kms0 , int * kme0 , |
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| 97 | int * ips0 , int * ipe0 , int * jps0 , int * jpe0 , int * kps0 , int * kpe0 ) |
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| 98 | { |
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| 99 | int me, np, np_x, np_y ; |
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| 100 | int shw , typesize ; |
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| 101 | int ids , ide , jds , jde , kds , kde ; |
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| 102 | int ims , ime , jms , jme , kms , kme ; |
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| 103 | int ips , ipe , jps , jpe , kps , kpe ; |
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| 104 | int xstag ; /* 0 not stag, 1 stag */ |
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| 105 | int xy ; /* y = 0 , x = 1 */ |
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| 106 | int pu ; /* pack = 0 , unpack = 1 */ |
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| 107 | register int i, j, k, t ; |
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| 108 | #ifdef crayx1 |
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| 109 | register int i2,i3,i4,i_offset; |
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| 110 | #endif |
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| 111 | char *p ; |
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| 112 | int da_buf ; |
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| 113 | int yp, ym, xp, xm ; |
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| 114 | int nbytes, ierr ; |
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| 115 | register int *pi, *qi ; |
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| 116 | int coords[2], dims[2] ; |
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| 117 | int js, je, ks, ke, is, ie, wcount ; |
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| 118 | float f ; |
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| 119 | MPI_Comm comm, *comm0, dummy_comm ; |
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| 120 | |
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| 121 | comm0 = &dummy_comm ; |
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| 122 | *comm0 = MPI_Comm_f2c( *Fcomm0 ) ; |
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| 123 | |
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| 124 | me = *me0 ; np = *np0 ; np_x = *np_x0 ; np_y = *np_y0 ; |
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| 125 | xstag = *xstag0 ; |
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| 126 | shw = *shw0 ; typesize = *typesize0 ; |
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| 127 | ids = *ids0-1 ; ide = *ide0-1 ; jds = *jds0-1 ; jde = *jde0-1 ; kds = *kds0-1 ; kde = *kde0-1 ; |
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| 128 | ims = *ims0-1 ; ime = *ime0-1 ; jms = *jms0-1 ; jme = *jme0-1 ; kms = *kms0-1 ; kme = *kme0-1 ; |
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| 129 | ips = *ips0-1 ; ipe = *ipe0-1 ; jps = *jps0-1 ; jpe = *jpe0-1 ; kps = *kps0-1 ; kpe = *kpe0-1 ; |
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| 130 | xy = *xy0 ; |
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| 131 | pu = *pu0 ; |
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| 132 | |
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| 133 | dims[0] = np_x ; |
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| 134 | dims[1] = np_y ; |
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| 135 | |
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| 136 | /* need to adapt for other memory orders */ |
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| 137 | |
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| 138 | #define RANGE(S1,E1,S2,E2,S3,E3,S4,E4) (((E1)-(S1)+1)*((E2)-(S2)+1)*((E3)-(S3)+1)*((E4)-(S4)+1)) |
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| 139 | #define IMAX(A) (((A)>ids)?(A):ids) |
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| 140 | #define IMIN(A) (((A)<ide)?(A):ide) |
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| 141 | #define JMAX(A) (((A)>jds)?(A):jds) |
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| 142 | #define JMIN(A) (((A)<jde)?(A):jde) |
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| 143 | |
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| 144 | da_buf = ( pu == 0 ) ? RSL_SENDBUF : RSL_RECVBUF ; |
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| 145 | |
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| 146 | if ( np_x > 1 && xy == 1 ) { |
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| 147 | MPI_Comm_rank( *comm0, &me ) ; |
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| 148 | MPI_Cart_coords( *comm0, me, 2, coords ) ; |
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| 149 | MPI_Cart_shift( *comm0, 1, 1, &xm, &xp ) ; |
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| 150 | if ( coords[1] == np_x - 1 ) { /* process on right hand edge of domain */ |
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| 151 | p = buffer_for_proc( xp , 0 , da_buf ) ; |
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| 152 | if ( pu == 0 ) { |
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| 153 | js = JMAX(jps-shw) ; je = JMIN(jpe+shw) ; |
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| 154 | ks = kps ; ke = kpe ; |
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| 155 | is = ipe-shw ; ie = ipe-1 ; |
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| 156 | nbytes = buffer_size_for_proc( xp , da_buf ) ; |
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| 157 | if ( xp_curs + RANGE( JMAX(jps-shw), JMIN(jpe+shw), kps, kpe, ipe-shw, ipe-1, 1, typesize ) > nbytes ) { |
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| 158 | fprintf(stderr,"memory overwrite in rsl_lite_pack_period_x, right hand X to %d, %d > %d\n",xp, |
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| 159 | xp_curs + RANGE( JMAX(jps-shw), JMIN(jpe+shw), kps, kpe, ipe-shw, ipe-1, 1, typesize ), nbytes ) ; |
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| 160 | MPI_Abort(MPI_COMM_WORLD, 98) ; |
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| 161 | } |
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| 162 | if ( typesize == sizeof(long int) ) { |
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| 163 | F_PACK_LINT ( buf, p+xp_curs, &js, &je, &ks, &ke, &is, &ie, |
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| 164 | &jms,&jme,&kms,&kme,&ims,&ime, &wcount ) ; |
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| 165 | xp_curs += wcount*typesize ; |
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| 166 | } else |
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| 167 | if ( typesize == sizeof(int) ) { |
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| 168 | #ifdef F_PACK |
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| 169 | F_PACK_INT ( buf, p+xp_curs, &js, &je, &ks, &ke, &is, &ie, |
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| 170 | &jms,&jme,&kms,&kme,&ims,&ime, &wcount ) ; |
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| 171 | xp_curs += wcount*typesize ; |
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| 172 | #else |
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| 173 | for ( j = JMAX(jps-shw) ; j <= JMIN(jpe+shw) ; j++ ) { |
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| 174 | for ( k = kps ; k <= kpe ; k++ ) { |
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| 175 | pi = (int *)(p+xp_curs) ; |
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| 176 | i = ipe-shw ; |
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| 177 | qi = (int *)((buf + typesize*( (i-ims) + (ime-ims+1)*( |
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| 178 | (k-kms) + (j-jms)*(kme-kms+1))))) ; |
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| 179 | for ( i = ipe-shw ; i <= ipe-1 ; i++ ) { |
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| 180 | *pi++ = *qi++ ; |
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| 181 | xp_curs += typesize ; |
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| 182 | } |
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| 183 | } |
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| 184 | } |
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| 185 | #endif |
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| 186 | } |
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| 187 | else { |
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| 188 | for ( j = JMAX(jps-shw) ; j <= JMIN(jpe+shw) ; j++ ) { |
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| 189 | for ( k = kps ; k <= kpe ; k++ ) { |
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| 190 | for ( i = ipe-shw ; i <= ipe-1 ; i++ ) { |
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| 191 | for ( t = 0 ; t < typesize ; t++ ) { |
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| 192 | *(p+xp_curs) = |
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| 193 | *(buf + t + typesize*( |
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| 194 | (i-ims) + (ime-ims+1)*( |
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| 195 | (k-kms) + (j-jms)*(kme-kms+1))) ) ; |
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| 196 | xp_curs++ ; |
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| 197 | } |
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| 198 | } |
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| 199 | } |
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| 200 | } |
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| 201 | } |
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| 202 | } else { |
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| 203 | js = JMAX(jps-shw) ; je = JMIN(jpe+shw) ; |
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| 204 | ks = kps ; ke = kpe ; |
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| 205 | is = ipe ; ie = ipe+shw-1+xstag ; |
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| 206 | if ( typesize == sizeof(long int) ) { |
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| 207 | F_UNPACK_LINT ( p+xp_curs, buf, &js, &je, &ks, &ke, &is, &ie, |
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| 208 | &jms,&jme,&kms,&kme,&ims,&ime, &wcount ) ; |
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| 209 | xp_curs += wcount*typesize ; |
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| 210 | } else |
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| 211 | if ( typesize == sizeof(int) ) { |
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| 212 | #ifdef F_PACK |
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| 213 | F_UNPACK_INT ( p+xp_curs, buf, &js, &je, &ks, &ke, &is, &ie, |
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| 214 | &jms,&jme,&kms,&kme,&ims,&ime, &wcount ) ; |
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| 215 | xp_curs += wcount*typesize ; |
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| 216 | #else |
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| 217 | for ( j = JMAX(jps-shw) ; j <= JMIN(jpe+shw) ; j++ ) { |
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| 218 | for ( k = kps ; k <= kpe ; k++ ) { |
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| 219 | pi = (int *)(p+xp_curs) ; |
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| 220 | i = ipe ; |
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| 221 | qi = (int *)((buf + typesize*( (i-ims) + (ime-ims+1)*( |
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| 222 | (k-kms) + (j-jms)*(kme-kms+1))))) ; |
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| 223 | for ( i = ipe ; i <= ipe+shw-1+xstag ; i++ ) { |
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| 224 | *qi++ = *pi++ ; |
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| 225 | xp_curs += typesize ; |
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| 226 | } |
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| 227 | } |
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| 228 | } |
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| 229 | #endif |
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| 230 | } |
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| 231 | else { |
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| 232 | for ( j = JMAX(jps-shw) ; j <= JMIN(jpe+shw) ; j++ ) { |
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| 233 | for ( k = kps ; k <= kpe ; k++ ) { |
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| 234 | for ( i = ipe ; i <= ipe+shw-1+xstag ; i++ ) { |
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| 235 | for ( t = 0 ; t < typesize ; t++ ) { |
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| 236 | *(buf + t + typesize*( |
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| 237 | (i-ims) + (ime-ims+1)*( |
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| 238 | (k-kms) + (j-jms)*(kme-kms+1))) ) = |
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| 239 | *(p+xp_curs) ; |
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| 240 | xp_curs++ ; |
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| 241 | } |
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| 242 | } |
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| 243 | } |
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| 244 | } |
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| 245 | } |
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| 246 | } |
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| 247 | } |
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| 248 | if ( coords[1] == 0 ) { /* process on left hand edge of domain */ |
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| 249 | p = buffer_for_proc( xm , 0 , da_buf ) ; |
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| 250 | if ( pu == 0 ) { |
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| 251 | js = JMAX(jps-shw) ; je = JMIN(jpe+shw) ; |
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| 252 | ks = kps ; ke = kpe ; |
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| 253 | is = ips ; ie = ips+shw-1+xstag ; |
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| 254 | nbytes = buffer_size_for_proc( xm , da_buf ) ; |
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| 255 | if ( xm_curs + RANGE( JMAX(jps-shw), JMIN(jpe+shw), kps, kpe, ips, ips+shw-1+xstag, 1, typesize ) > nbytes ) { |
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| 256 | fprintf(stderr,"memory overwrite in rsl_lite_pack, left hand X to %d , %d > %d\n",xm, |
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| 257 | xm_curs + RANGE( JMAX(jps-shw), JMIN(jpe+shw), kps, kpe, ips, ips+shw-1+xstag, 1, typesize ), nbytes ) ; |
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| 258 | MPI_Abort(MPI_COMM_WORLD, 98) ; |
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| 259 | } |
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| 260 | if ( typesize == sizeof(long int) ) { |
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| 261 | F_PACK_LINT ( buf, p+xm_curs, &js, &je, &ks, &ke, &is, &ie, |
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| 262 | &jms,&jme,&kms,&kme,&ims,&ime, &wcount ) ; |
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| 263 | xm_curs += wcount*typesize ; |
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| 264 | } else |
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| 265 | if ( typesize == sizeof(int) ) { |
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| 266 | #ifdef F_PACK |
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| 267 | F_PACK_INT ( buf, p+xm_curs, &js, &je, &ks, &ke, &is, &ie, |
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| 268 | &jms,&jme,&kms,&kme,&ims,&ime, &wcount ) ; |
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| 269 | xm_curs += wcount*typesize ; |
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| 270 | #else |
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| 271 | for ( j = JMAX(jps-shw) ; j <= JMIN(jpe+shw) ; j++ ) { |
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| 272 | for ( k = kps ; k <= kpe ; k++ ) { |
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| 273 | pi = (int *)(p+xm_curs) ; |
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| 274 | i = ips ; |
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| 275 | qi = (int *)((buf + typesize*( (i-ims) + (ime-ims+1)*( |
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| 276 | (k-kms) + (j-jms)*(kme-kms+1))))) ; |
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| 277 | for ( i = ips ; i <= ips+shw-1+xstag ; i++ ) { |
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| 278 | *pi++ = *qi++ ; |
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| 279 | xm_curs += typesize ; |
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| 280 | } |
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| 281 | } |
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| 282 | } |
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| 283 | #endif |
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| 284 | } |
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| 285 | else { |
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| 286 | for ( j = JMAX(jps-shw) ; j <= JMIN(jpe+shw) ; j++ ) { |
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| 287 | for ( k = kps ; k <= kpe ; k++ ) { |
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| 288 | for ( i = ips ; i <= ips+shw-1+xstag ; i++ ) { |
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| 289 | for ( t = 0 ; t < typesize ; t++ ) { |
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| 290 | *(p+xm_curs) = |
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| 291 | *(buf + t + typesize*( |
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| 292 | (i-ims) + (ime-ims+1)*( |
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| 293 | (k-kms) + (j-jms)*(kme-kms+1))) ) ; |
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| 294 | xm_curs++ ; |
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| 295 | } |
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| 296 | } |
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| 297 | } |
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| 298 | } |
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| 299 | } |
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| 300 | } else { |
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| 301 | js = JMAX(jps-shw) ; je = JMIN(jpe+shw) ; |
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| 302 | ks = kps ; ke = kpe ; |
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| 303 | is = ips-shw ; ie = ips-1 ; |
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| 304 | if ( typesize == sizeof(long int) ) { |
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| 305 | F_UNPACK_LINT ( p+xm_curs, buf, &js, &je, &ks, &ke, &is, &ie, |
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| 306 | &jms,&jme,&kms,&kme,&ims,&ime, &wcount ) ; |
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| 307 | xm_curs += wcount*typesize ; |
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| 308 | } else |
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| 309 | if ( typesize == sizeof(int) ) { |
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| 310 | #ifdef F_PACK |
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| 311 | F_UNPACK_INT ( p+xm_curs, buf, &js, &je, &ks, &ke, &is, &ie, |
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| 312 | &jms,&jme,&kms,&kme,&ims,&ime, &wcount ) ; |
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| 313 | xm_curs += wcount*typesize ; |
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| 314 | #else |
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| 315 | for ( j = JMAX(jps-shw) ; j <= JMIN(jpe+shw) ; j++ ) { |
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| 316 | for ( k = kps ; k <= kpe ; k++ ) { |
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| 317 | pi = (int *)(p+xm_curs) ; |
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| 318 | i = ips-shw ; |
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| 319 | qi = (int *)((buf + typesize*( (i-ims) + (ime-ims+1)*( |
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| 320 | (k-kms) + (j-jms)*(kme-kms+1))))) ; |
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| 321 | for ( i = ips-shw ; i <= ips-1 ; i++ ) { |
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| 322 | *qi++ = *pi++ ; |
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| 323 | xm_curs += typesize ; |
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| 324 | } |
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| 325 | } |
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| 326 | } |
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| 327 | #endif |
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| 328 | } |
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| 329 | else { |
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| 330 | for ( j = JMAX(jps-shw) ; j <= JMIN(jpe+shw) ; j++ ) { |
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| 331 | for ( k = kps ; k <= kpe ; k++ ) { |
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| 332 | for ( i = ips-shw ; i <= ips-1 ; i++ ) { |
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| 333 | for ( t = 0 ; t < typesize ; t++ ) { |
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| 334 | *(buf + t + typesize*( |
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| 335 | (i-ims) + (ime-ims+1)*( |
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| 336 | (k-kms) + (j-jms)*(kme-kms+1))) ) = |
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| 337 | *(p+xm_curs) ; |
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| 338 | xm_curs++ ; |
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| 339 | } |
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| 340 | } |
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| 341 | } |
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| 342 | } |
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| 343 | } |
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| 344 | } |
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| 345 | } |
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| 346 | } |
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| 347 | } |
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| 348 | |
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| 349 | static MPI_Request yp_recv, ym_recv, yp_send, ym_send ; |
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| 350 | static MPI_Request xp_recv, xm_recv, xp_send, xm_send ; |
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| 351 | |
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| 352 | #if 0 |
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| 353 | RSL_LITE_EXCH_PERIOD_Y ( int * Fcomm0, int *me0, int * np0 , int * np_x0 , int * np_y0 ) |
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| 354 | { |
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| 355 | int me, np, np_x, np_y ; |
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| 356 | int yp, ym, xp, xm, ierr ; |
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| 357 | MPI_Status stat ; |
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| 358 | MPI_Comm comm, *comm0, dummy_comm ; |
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| 359 | |
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| 360 | comm0 = &dummy_comm ; |
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| 361 | *comm0 = MPI_Comm_f2c( *Fcomm0 ) ; |
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| 362 | #if 1 |
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| 363 | comm = *comm0 ; me = *me0 ; np = *np0 ; np_x = *np_x0 ; np_y = *np_y0 ; |
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| 364 | if ( np_y > 1 ) { |
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| 365 | yp = me + np_x ; ym = me - np_x ; |
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| 366 | if ( yp >= 0 && yp < np ) { |
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| 367 | ierr=MPI_Irecv ( buffer_for_proc( yp, yp_curs, RSL_RECVBUF ), yp_curs, MPI_CHAR, yp, me, comm, &yp_recv ) ; |
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| 368 | } |
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| 369 | if ( ym >= 0 && ym < np ) { |
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| 370 | ierr=MPI_Irecv ( buffer_for_proc( ym, ym_curs, RSL_RECVBUF ), ym_curs, MPI_CHAR, ym, me, comm, &ym_recv ) ; |
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| 371 | } |
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| 372 | if ( yp >= 0 && yp < np ) { |
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| 373 | ierr=MPI_Isend ( buffer_for_proc( yp, 0, RSL_SENDBUF ), yp_curs, MPI_CHAR, yp, yp, comm, &yp_send ) ; |
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| 374 | } |
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| 375 | if ( ym >= 0 && ym < np ) { |
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| 376 | ierr=MPI_Isend ( buffer_for_proc( ym, 0, RSL_SENDBUF ), ym_curs, MPI_CHAR, ym, ym, comm, &ym_send ) ; |
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| 377 | } |
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| 378 | if ( yp >= 0 && yp < np ) MPI_Wait( &yp_recv, &stat ) ; |
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| 379 | if ( ym >= 0 && ym < np ) MPI_Wait( &ym_recv, &stat ) ; |
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| 380 | if ( yp >= 0 && yp < np ) MPI_Wait( &yp_send, &stat ) ; |
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| 381 | if ( ym >= 0 && ym < np ) MPI_Wait( &ym_send, &stat ) ; |
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| 382 | } |
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| 383 | yp_curs = 0 ; ym_curs = 0 ; xp_curs = 0 ; xm_curs = 0 ; |
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| 384 | #else |
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| 385 | fprintf(stderr,"RSL_LITE_EXCH_Y disabled\n") ; |
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| 386 | #endif |
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| 387 | } |
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| 388 | #endif |
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| 389 | |
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| 390 | RSL_LITE_EXCH_PERIOD_X ( int * Fcomm0, int *me0, int * np0 , int * np_x0 , int * np_y0 ) |
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| 391 | { |
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| 392 | int me, np, np_x, np_y ; |
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| 393 | int yp, ym, xp, xm, nbytes ; |
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| 394 | MPI_Status stat ; |
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| 395 | MPI_Comm comm, *comm0, dummy_comm ; |
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| 396 | int coords[2], dims[2] ; |
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| 397 | |
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| 398 | comm0 = &dummy_comm ; |
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| 399 | *comm0 = MPI_Comm_f2c( *Fcomm0 ) ; |
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| 400 | #if 1 |
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| 401 | comm = *comm0 ; me = *me0 ; np = *np0 ; np_x = *np_x0 ; np_y = *np_y0 ; |
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| 402 | dims[0] = np_x ; |
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| 403 | dims[1] = np_y ; |
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| 404 | |
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| 405 | if ( np_x > 1 ) { |
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| 406 | MPI_Comm_rank( *comm0, &me ) ; |
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| 407 | MPI_Cart_coords( *comm0, me, 2, coords ) ; |
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| 408 | MPI_Cart_shift( *comm0, 1, 1, &xm, &xp ) ; |
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| 409 | if ( coords[1] == np_x - 1 ) { /* proc on right hand side of domain */ |
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| 410 | nbytes = buffer_size_for_proc( xp, RSL_RECVBUF ) ; |
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| 411 | MPI_Irecv ( buffer_for_proc( xp , xp_curs, RSL_RECVBUF ), nbytes, MPI_CHAR, xp, me, comm, &xp_recv ) ; |
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| 412 | } |
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| 413 | if ( coords[1] == 0 ) { /* proc on left hand side of domain */ |
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| 414 | nbytes = buffer_size_for_proc( xm, RSL_RECVBUF ) ; |
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| 415 | MPI_Irecv ( buffer_for_proc( xm, xm_curs, RSL_RECVBUF ), nbytes, MPI_CHAR, xm, me, comm, &xm_recv ) ; |
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| 416 | } |
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| 417 | if ( coords[1] == np_x - 1 ) { /* proc on right hand side of domain */ |
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| 418 | MPI_Isend ( buffer_for_proc( xp , 0, RSL_SENDBUF ), xp_curs, MPI_CHAR, xp, xp, comm, &xp_send ) ; |
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| 419 | } |
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| 420 | if ( coords[1] == 0 ) { /* proc on left hand side of domain */ |
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| 421 | MPI_Isend ( buffer_for_proc( xm, 0, RSL_SENDBUF ), xm_curs, MPI_CHAR, xm, xm, comm, &xm_send ) ; |
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| 422 | } |
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| 423 | if ( coords[1] == np_x - 1 ) MPI_Wait( &xp_recv, &stat ) ; |
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| 424 | if ( coords[1] == 0 ) MPI_Wait( &xm_recv, &stat ) ; |
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| 425 | if ( coords[1] == np_x - 1 ) MPI_Wait( &xp_send, &stat ) ; |
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| 426 | if ( coords[1] == 0 ) MPI_Wait( &xm_send, &stat ) ; |
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| 427 | } |
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| 428 | #else |
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| 429 | fprintf(stderr,"RSL_LITE_EXCH_X disabled\n") ; |
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| 430 | #endif |
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| 431 | yp_curs = 0 ; ym_curs = 0 ; xp_curs = 0 ; xm_curs = 0 ; |
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| 432 | } |
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| 433 | |
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