Last change
on this file since 2925 was
1999,
checked in by Laurent Fairhead, 10 years ago
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Merged trunk changes r1920:1997 into testing branch
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Property copyright set to
Name of program: LMDZ Creation date: 1984 Version: LMDZ5 License: CeCILL version 2 Holder: Laboratoire de m\'et\'eorologie dynamique, CNRS, UMR 8539 See the license file in the root directory
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Property svn:eol-style set to
native
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Property svn:keywords set to
Author Date Id Revision
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File size:
675 bytes
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1 | |
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2 | ! $Header$ |
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3 | |
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4 | SUBROUTINE ran0_vec(npoints, idum, ran0) |
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5 | |
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6 | ! $Id: ran0_vec.F90 1999 2014-03-20 09:57:19Z fcheruy $ |
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7 | ! Platform independent random number generator from |
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8 | ! Numerical Recipies |
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9 | ! Mark Webb July 1999 |
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10 | |
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11 | IMPLICIT NONE |
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12 | |
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13 | INTEGER j, npoints, idum(npoints), ia, im, iq, ir, k(npoints) |
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14 | REAL ran0(npoints), am |
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15 | |
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16 | PARAMETER (ia=16807, im=2147483647, am=1.0/im, iq=127773, ir=2836) |
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17 | |
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18 | ! do j=1,npoints |
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19 | ! if (idum(j).eq.0) then |
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20 | ! write(6,*) 'idum=',idum |
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21 | ! write(6,*) 'ZERO seed not allowed' |
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22 | ! stop |
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23 | ! endif |
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24 | ! enddo |
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25 | |
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26 | DO j = 1, npoints |
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27 | k(j) = idum(j)/iq |
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28 | idum(j) = ia*(idum(j)-k(j)*iq) - ir*k(j) |
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29 | IF (idum(j)<0) idum(j) = idum(j) + im |
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30 | ran0(j) = am*idum(j) |
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31 | END DO |
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32 | |
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33 | END SUBROUTINE ran0_vec |
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34 | |
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