1 | MODULE mpipara |
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2 | |
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3 | INTEGER,SAVE :: mpi_rank |
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4 | INTEGER,SAVE :: mpi_size |
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5 | |
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6 | INTEGER,SAVE :: comm_icosa |
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7 | INTEGER,SAVE :: ierr |
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8 | LOGICAL,SAVE :: using_mpi |
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9 | LOGICAL,SAVE :: is_mpi_root |
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10 | |
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11 | INTERFACE allocate_mpi_buffer |
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12 | MODULE PROCEDURE allocate_mpi_buffer_r2, allocate_mpi_buffer_r3,allocate_mpi_buffer_r4 |
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13 | END INTERFACE allocate_mpi_buffer |
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14 | |
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15 | CONTAINS |
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16 | |
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17 | SUBROUTINE init_mpipara |
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18 | USE mpi_mod |
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19 | #ifdef CPP_USING_XIOS |
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20 | USE xios |
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21 | #endif |
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22 | IMPLICIT NONE |
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23 | |
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24 | using_mpi=.FALSE. |
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25 | #ifdef CPP_USING_MPI |
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26 | using_mpi=.TRUE. |
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27 | #endif |
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28 | |
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29 | IF (using_mpi) THEN |
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30 | CALL MPI_INIT(ierr) |
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31 | |
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32 | #ifdef CPP_USING_XIOS |
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33 | CALL xios_initialize("icosagcm",return_comm=comm_icosa) |
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34 | #else |
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35 | comm_icosa=MPI_COMM_WORLD |
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36 | #endif |
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37 | CALL MPI_COMM_SIZE(comm_icosa,mpi_size,ierr) |
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38 | CALL MPI_COMM_RANK(comm_icosa,mpi_rank,ierr) |
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39 | PRINT *, 'MPI Process ', mpi_rank, '/', mpi_size |
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40 | ELSE |
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41 | comm_icosa=-1 |
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42 | mpi_size=1 |
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43 | mpi_rank=0 |
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44 | ENDIF |
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45 | |
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46 | IF (mpi_rank==0) THEN |
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47 | is_mpi_root=.TRUE. |
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48 | ELSE |
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49 | is_mpi_root=.FALSE. |
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50 | ENDIF |
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51 | |
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52 | END SUBROUTINE init_mpipara |
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53 | |
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54 | SUBROUTINE finalize_mpipara |
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55 | USE mpi_mod |
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56 | IMPLICIT NONE |
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57 | |
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58 | IF (using_mpi) CALL MPI_FINALIZE(ierr) |
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59 | |
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60 | END SUBROUTINE finalize_mpipara |
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61 | |
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62 | |
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63 | SUBROUTINE allocate_mpi_buffer_r2(buffer,length) |
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64 | USE ISO_C_BINDING |
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65 | USE mpi_mod |
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66 | USE prec |
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67 | IMPLICIT NONE |
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68 | REAL(rstd), POINTER :: buffer(:) |
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69 | INTEGER,INTENT(IN) :: length |
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70 | |
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71 | TYPE(C_PTR) :: base_ptr |
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72 | INTEGER(KIND=MPI_ADDRESS_KIND) :: size |
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73 | INTEGER :: real_size,ierr |
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74 | |
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75 | CALL MPI_TYPE_EXTENT(MPI_REAL8, real_size, ierr) |
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76 | size=length*real_size |
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77 | |
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78 | CALL MPI_ALLOC_MEM(size,MPI_INFO_NULL,base_ptr,ierr) |
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79 | CALL C_F_POINTER(base_ptr, buffer, (/ length /)) |
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80 | |
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81 | END SUBROUTINE allocate_mpi_buffer_r2 |
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82 | |
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83 | SUBROUTINE allocate_mpi_buffer_r3(buffer,length,dim3) |
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84 | USE ISO_C_BINDING |
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85 | USE mpi_mod |
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86 | USE prec |
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87 | IMPLICIT NONE |
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88 | REAL(rstd), POINTER :: buffer(:,:) |
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89 | INTEGER,INTENT(IN) :: length |
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90 | INTEGER,INTENT(IN) :: dim3 |
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91 | |
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92 | TYPE(C_PTR) :: base_ptr |
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93 | INTEGER(KIND=MPI_ADDRESS_KIND) :: size |
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94 | INTEGER :: real_size,ierr |
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95 | |
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96 | CALL MPI_TYPE_EXTENT(MPI_REAL8, real_size, ierr) |
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97 | size=length*real_size*dim3 |
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98 | |
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99 | CALL MPI_ALLOC_MEM(size,MPI_INFO_NULL,base_ptr,ierr) |
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100 | CALL C_F_POINTER(base_ptr, buffer, (/ length,dim3 /)) |
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101 | |
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102 | END SUBROUTINE allocate_mpi_buffer_r3 |
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103 | |
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104 | SUBROUTINE allocate_mpi_buffer_r4(buffer,length,dim3,dim4) |
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105 | USE ISO_C_BINDING |
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106 | USE mpi_mod |
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107 | USE prec |
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108 | IMPLICIT NONE |
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109 | REAL(rstd), POINTER :: buffer(:,:,:) |
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110 | INTEGER,INTENT(IN) :: length |
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111 | INTEGER,INTENT(IN) :: dim3 |
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112 | INTEGER,INTENT(IN) :: dim4 |
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113 | |
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114 | TYPE(C_PTR) :: base_ptr |
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115 | INTEGER(KIND=MPI_ADDRESS_KIND) :: size |
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116 | INTEGER :: real_size,ierr |
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117 | |
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118 | CALL MPI_TYPE_EXTENT(MPI_REAL8, real_size, ierr) |
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119 | size=length*real_size*dim3*dim4 |
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120 | |
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121 | CALL MPI_ALLOC_MEM(size,MPI_INFO_NULL,base_ptr,ierr) |
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122 | CALL C_F_POINTER(base_ptr, buffer, (/ length, dim3, dim4 /)) |
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123 | |
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124 | END SUBROUTINE allocate_mpi_buffer_r4 |
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125 | |
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126 | END MODULE mpipara |
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