Last change
on this file since 5423 was
2239,
checked in by Ehouarn Millour, 10 years ago
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Reorganizing physics/dynamics interface:
- what is related to dynamics-physics interface is now in a seperate directory: dynlmdz_phy* for physics in phy*
- 1d model and related dependencies (including a couple from "dynamics", set up as symbolic links) is now in subdirectory "dyn1d" of phy*.
- "bibio" directory is now "misc" and should only contain autonomous utilities.
- "cosp" is now a subdirectory of phylmd.
EM
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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:
1009 bytes
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1 | ! |
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2 | ! $Id: ran1.F 2239 2015-03-23 07:27:30Z evignon $ |
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3 | ! |
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4 | FUNCTION RAN1(IDUM) |
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5 | IMPLICIT NONE |
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6 | REAL RAN1 |
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7 | REAL,SAVE :: R(97) |
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8 | REAL,PARAMETER :: RM1=3.8580247E-6,RM2=7.4373773E-6 |
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9 | INTEGER,SAVE :: IFF=0 |
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10 | integer,save :: ix1,ix2,ix3 |
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11 | INTEGER,PARAMETER :: M1=259200,IA1=7141,IC1=54773 |
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12 | INTEGER,PARAMETER :: M2=134456,IA2=8121,IC2=28411 |
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13 | INTEGER,PARAMETER :: M3=243000,IA3=4561,IC3=51349 |
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14 | INTEGER :: IDUM,J |
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15 | |
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16 | IF (IDUM.LT.0.OR.IFF.EQ.0) THEN |
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17 | IFF=1 |
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18 | IX1=MOD(IC1-IDUM,M1) |
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19 | IX1=MOD(IA1*IX1+IC1,M1) |
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20 | IX2=MOD(IX1,M2) |
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21 | IX1=MOD(IA1*IX1+IC1,M1) |
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22 | IX3=MOD(IX1,M3) |
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23 | DO 11 J=1,97 |
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24 | IX1=MOD(IA1*IX1+IC1,M1) |
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25 | IX2=MOD(IA2*IX2+IC2,M2) |
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26 | R(J)=(REAL(IX1)+REAL(IX2)*RM2)*RM1 |
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27 | 11 CONTINUE |
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28 | IDUM=1 |
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29 | ENDIF |
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30 | IX1=MOD(IA1*IX1+IC1,M1) |
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31 | IX2=MOD(IA2*IX2+IC2,M2) |
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32 | IX3=MOD(IA3*IX3+IC3,M3) |
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33 | J=1+(97*IX3)/M3 |
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34 | IF(J.GT.97.OR.J.LT.1) stop 1 |
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35 | RAN1=R(J) |
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36 | R(J)=(REAL(IX1)+REAL(IX2)*RM2)*RM1 |
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37 | RETURN |
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38 | END |
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