This source file includes following definitions.
- MPI_File_set_size
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8 #include "mpioimpl.h"
9
10 #ifdef HAVE_WEAK_SYMBOLS
11
12 #if defined(HAVE_PRAGMA_WEAK)
13 #pragma weak MPI_File_set_size = PMPI_File_set_size
14 #elif defined(HAVE_PRAGMA_HP_SEC_DEF)
15 #pragma _HP_SECONDARY_DEF PMPI_File_set_size MPI_File_set_size
16 #elif defined(HAVE_PRAGMA_CRI_DUP)
17 #pragma _CRI duplicate MPI_File_set_size as PMPI_File_set_size
18
19 #elif defined(HAVE_WEAK_ATTRIBUTE)
20 int MPI_File_set_size(MPI_File fh, MPI_Offset size) __attribute__((weak,alias("PMPI_File_set_size")));
21 #endif
22
23
24 #define MPIO_BUILD_PROFILING
25 #include "mpioprof.h"
26 #endif
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37 int MPI_File_set_size(MPI_File fh, MPI_Offset size)
38 {
39 int error_code;
40 ADIO_File adio_fh;
41 static char myname[] = "MPI_FILE_SET_SIZE";
42 MPI_Offset tmp_sz, max_sz, min_sz;
43
44 #ifdef MPI_hpux
45 int fl_xmpi;
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47 HPMP_IO_START(fl_xmpi, BLKMPIFILESETSIZE, TRDTBLOCK, adio_fh,
48 MPI_DATATYPE_NULL, -1);
49 #endif
50
51 ROMIO_THREAD_CS_ENTER();
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53 adio_fh = MPIO_File_resolve(fh);
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56 MPIO_CHECK_FILE_HANDLE(adio_fh, myname, error_code);
57 MPIO_CHECK_NOT_SEQUENTIAL_MODE(adio_fh, myname, error_code);
58
59 if (size < 0) {
60 error_code = MPIO_Err_create_code(MPI_SUCCESS, MPIR_ERR_RECOVERABLE,
61 myname, __LINE__, MPI_ERR_ARG,
62 "**iobadsize", 0);
63 error_code = MPIO_Err_return_file(adio_fh, error_code);
64 goto fn_exit;
65 }
66 MPIO_CHECK_WRITABLE(fh, myname, error_code);
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69 tmp_sz = size;
70 MPI_Allreduce(&tmp_sz, &max_sz, 1, ADIO_OFFSET, MPI_MAX, adio_fh->comm);
71 MPI_Allreduce(&tmp_sz, &min_sz, 1, ADIO_OFFSET, MPI_MIN, adio_fh->comm);
72
73
74 if (max_sz != min_sz) {
75 error_code = MPIO_Err_create_code(MPI_SUCCESS, MPIR_ERR_RECOVERABLE,
76 myname, __LINE__, MPI_ERR_ARG,
77 "**notsame", 0);
78 error_code = MPIO_Err_return_file(adio_fh, error_code);
79 goto fn_exit;
80 }
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83 if (!ADIO_Feature(adio_fh, ADIO_SCALABLE_RESIZE)) {
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86 ADIOI_TEST_DEFERRED(adio_fh, "MPI_File_set_size", &error_code);
87 }
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89 ADIO_Resize(adio_fh, size, &error_code);
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93 if (error_code != MPI_SUCCESS)
94 error_code = MPIO_Err_return_file(adio_fh, error_code);
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97 #ifdef MPI_hpux
98 HPMP_IO_END(fl_xmpi, adio_fh, MPI_DATATYPE_NULL, -1);
99 #endif
100
101 fn_exit:
102 ROMIO_THREAD_CS_EXIT();
103
104 return error_code;
105 }