Last change
on this file since 170 was
151,
checked in by ymipsl, 11 years ago
|
Implementation of mixte parallelism MPI/OpenMP into src directory
YM
|
File size:
1.8 KB
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Rev | Line | |
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[151] | 1 | MODULE omp_para |
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| 2 | |
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| 3 | INTEGER,SAVE :: omp_size |
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| 4 | INTEGER,SAVE :: omp_rank |
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| 5 | !$OMP THREADPRIVATE(omp_rank) |
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| 6 | |
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| 7 | LOGICAL,SAVE :: omp_first |
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| 8 | LOGICAL,SAVE :: omp_last |
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| 9 | LOGICAL,SAVE :: omp_master |
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| 10 | !$OMP THREADPRIVATE(omp_first, omp_last,omp_master) |
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| 11 | |
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| 12 | INTEGER,SAVE :: ll_begin |
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| 13 | INTEGER,SAVE :: ll_beginp1 |
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| 14 | INTEGER,SAVE :: ll_end |
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| 15 | INTEGER,SAVE :: ll_endm1 |
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| 16 | INTEGER,SAVE :: ll_endp1 |
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| 17 | !$OMP THREADPRIVATE(ll_begin,ll_beginp1,ll_end,ll_endm1,ll_endp1) |
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| 18 | LOGICAL,SAVE :: using_openmp |
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| 19 | |
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| 20 | CONTAINS |
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| 21 | |
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| 22 | |
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| 23 | SUBROUTINE init_omp_para |
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| 24 | USE grid_param |
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| 25 | #ifdef CPP_USING_OPENMP |
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| 26 | USE omp_lib |
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| 27 | #endif |
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| 28 | IMPLICIT NONE |
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| 29 | INTEGER :: ll_nb,i |
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| 30 | |
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| 31 | #ifdef CPP_USING_OPENMP |
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| 32 | using_openmp=.TRUE. |
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| 33 | #else |
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| 34 | using_openmp=.FALSE. |
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| 35 | #endif |
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| 36 | |
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| 37 | IF (using_openmp) THEN |
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| 38 | !$OMP PARALLEL PRIVATE(ll_nb,i) |
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| 39 | |
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| 40 | !$OMP MASTER |
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| 41 | #ifdef CPP_USING_OPENMP |
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| 42 | omp_size=OMP_GET_NUM_THREADS() |
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| 43 | #endif |
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| 44 | !$OMP END MASTER |
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| 45 | !$OMP BARRIER |
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| 46 | #ifdef CPP_USING_OPENMP |
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| 47 | omp_rank=OMP_GET_THREAD_NUM() |
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| 48 | #endif |
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| 49 | omp_first=.FALSE. |
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| 50 | omp_last=.FALSE. |
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| 51 | omp_master=.FALSE. |
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| 52 | |
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| 53 | IF (omp_rank==0) THEN |
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| 54 | omp_first=.TRUE. |
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| 55 | omp_master=.TRUE. |
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| 56 | ENDIF |
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| 57 | |
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| 58 | IF (omp_rank==omp_size-1) omp_last=.TRUE. |
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| 59 | |
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| 60 | ll_end=0 |
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| 61 | DO i=0,omp_rank |
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| 62 | ll_begin=ll_end+1 |
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| 63 | ll_nb=llm/omp_size |
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| 64 | IF (MOD(llm,omp_size)>i) ll_nb=ll_nb+1 |
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| 65 | ll_end=ll_begin+ll_nb-1 |
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| 66 | ENDDO |
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| 67 | |
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| 68 | ll_beginp1=ll_begin |
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| 69 | ll_endp1=ll_end |
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| 70 | ll_endm1=ll_end |
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| 71 | |
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| 72 | IF (omp_first) ll_beginp1=ll_begin+1 |
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| 73 | IF (omp_last) ll_endp1=ll_endp1+1 |
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| 74 | IF (omp_last) ll_endm1=ll_endm1-1 |
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| 75 | |
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| 76 | !$OMP END PARALLEL |
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| 77 | |
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| 78 | ELSE |
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| 79 | omp_size=1 |
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| 80 | omp_rank=0 |
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| 81 | omp_first=.TRUE. |
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| 82 | omp_last=.TRUE. |
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| 83 | omp_master=.TRUE. |
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| 84 | ll_begin=1 |
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| 85 | ll_beginp1=2 |
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| 86 | ll_end=llm |
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| 87 | ll_endm1=llm-1 |
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| 88 | ll_endp1=llm+1 |
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| 89 | ENDIF |
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| 90 | |
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| 91 | END SUBROUTINE init_omp_para |
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| 92 | |
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| 93 | |
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| 94 | END MODULE omp_para |
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| 95 | |
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| 96 | |
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| 97 | |
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| 98 | |
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| 99 | |
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| 100 | |
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