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replace MPI_File_seek and MPI_File_read with MPI_File_read_at_all

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This commit is contained in:
Wei-keng Liao 2017-11-11 18:33:39 -06:00
parent 28aec9e333
commit e9d222c5d3
1 changed files with 2 additions and 8 deletions
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10
libdispatch/dfile.c
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@ -2063,7 +2063,6 @@ fprintf(stderr,"XXX: openmagic: memory=0x%llx size=%ld\n",meminfo->memory,meminf
}
#ifdef USE_PARALLEL
if (file->use_parallel) {
MPI_Status mstatus;
int retval;
MPI_Offset size;
MPI_Comm comm = MPI_COMM_WORLD;
@ -2137,12 +2136,8 @@ printmagic("XXX: readmagic",magic,file);
if (file->use_parallel) {
MPI_Status mstatus;
int retval;
MPI_Offset offset;
offset = pos;
if((retval = MPI_File_seek(file->fh, offset, MPI_SEEK_SET)) != MPI_SUCCESS)
{status = NC_EPARINIT; goto done;}
if((retval = MPI_File_read(file->fh, magic, MAGIC_NUMBER_LEN, MPI_CHAR,
&mstatus)) != MPI_SUCCESS)
if((retval = MPI_File_read_at_all(file->fh, pos, magic,
MAGIC_NUMBER_LEN, MPI_CHAR, &mstatus)) != MPI_SUCCESS)
{status = NC_EPARINIT; goto done;}
goto done;
}
@ -2172,7 +2167,6 @@ closemagic(struct MagicFile* file)
if(file->inmemory) goto done; /* noop*/
#ifdef USE_PARALLEL
if (file->use_parallel) {
MPI_Status mstatus;
int retval;
if((retval = MPI_File_close(&file->fh)) != MPI_SUCCESS)
{status = NC_EPARINIT; goto done;}