ports/openmpi
ports/openmpi
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Add more optimizations in the case where heterogeneous support

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This commit was SVN r18932.
Этот коммит содержится в:
George Bosilca 2008-07-17 04:54:47 +00:00
родитель 939fa3001d
Коммит cb66115512
1 изменённых файлов: 39 добавлений и 29 удалений
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68
ompi/datatype/convertor.c
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@ -416,6 +416,33 @@ int32_t ompi_convertor_set_position_nocheck( ompi_convertor_t* convertor,
return rc;
}
/**
* Compute the remote size.
*/
#if OMPI_ENABLE_HETEROGENEOUS_SUPPORT
#define OMPI_CONVERTOR_COMPUTE_REMOTE_SIZE(convertor, datatype, bdt_mask) \
{ \
if( OPAL_UNLIKELY(0 != bdt_mask) ) { \
ompi_convertor_master_t* master; \
int i; \
convertor->flags ^= CONVERTOR_HOMOGENEOUS; \
bdt_mask = datatype->bdt_used; \
master = convertor->master; \
convertor->remote_size = 0; \
for( i = DT_CHAR; i < DT_MAX_PREDEFINED; i++ ) { \
if( bdt_mask & ((uint64_t)1 << i) ) { \
convertor->remote_size += (datatype->btypes[i] * \
master->remote_sizes[i]); \
} \
} \
convertor->remote_size *= convertor->count; \
convertor->use_desc = &(datatype->desc); \
} \
}
#else
#define OMPI_CONVERTOR_COMPUTE_REMOTE_SIZE(convertor, datatype, bdt_mask)
#endif /* OMPI_ENABLE_HETEROGENEOUS_SUPPORT */
/**
* This macro will initialize a convertor based on a previously created
* convertor. The idea is the move outside these function the heavy
@ -427,6 +454,15 @@ int32_t ompi_convertor_set_position_nocheck( ompi_convertor_t* convertor,
{ \
uint64_t bdt_mask; \
\
/* If the data is empty we just mark the convertor as \
* completed. With this flag set the pack and unpack functions \
* will not do anything. \
*/ \
if( OPAL_UNLIKELY((0 == count) || (0 == datatype->size)) ) { \
convertor->flags |= CONVERTOR_COMPLETED; \
convertor->local_size = convertor->remote_size = 0; \
return OMPI_SUCCESS; \
} \
bdt_mask = datatype->bdt_used & convertor->master->hetero_mask; \
/* Compute the local in advance */ \
convertor->local_size = count * datatype->size; \
@ -442,18 +478,8 @@ int32_t ompi_convertor_set_position_nocheck( ompi_convertor_t* convertor,
/* By default consider the optimized description */ \
convertor->use_desc = &(datatype->opt_desc); \
\
/* If the data is empty we just mark the convertor as \
* completed. With this flag set the pack and unpack functions \
* will not do anything. \
*/ \
if( OPAL_UNLIKELY((0 == count) || (0 == datatype->size)) ) { \
convertor->flags |= CONVERTOR_COMPLETED; \
convertor->remote_size = 0; \
return OMPI_SUCCESS; \
} \
\
convertor->remote_size = convertor->local_size; \
if( OPAL_LIKELY(convertor->remoteArch == ompi_mpi_local_arch) ) { \
convertor->remote_size = convertor->local_size; \
if( (convertor->flags & (CONVERTOR_WITH_CHECKSUM | DT_FLAG_NO_GAPS)) == DT_FLAG_NO_GAPS ) { \
return OMPI_SUCCESS; \
} \
@ -463,24 +489,8 @@ int32_t ompi_convertor_set_position_nocheck( ompi_convertor_t* convertor,
} \
} \
\
if( OPAL_LIKELY(0 == bdt_mask) ) { \
convertor->remote_size = convertor->local_size; \
} else { \
ompi_convertor_master_t* master; \
int i; \
convertor->flags ^= CONVERTOR_HOMOGENEOUS; \
bdt_mask = datatype->bdt_used; \
master = convertor->master; \
convertor->remote_size = 0; \
for( i = DT_CHAR; i < DT_MAX_PREDEFINED; i++ ) { \
if( bdt_mask & ((uint64_t)1 << i) ) { \
convertor->remote_size += (datatype->btypes[i] * \
master->remote_sizes[i]);\
} \
} \
convertor->remote_size *= convertor->count; \
convertor->use_desc = &(datatype->desc); \
} \
OMPI_CONVERTOR_COMPUTE_REMOTE_SIZE( convertor, datatype, \
bdt_mask ); \
assert( NULL != convertor->use_desc->desc ); \
/* For predefined datatypes (contiguous) do nothing more */ \
/* if checksum is enabled then always continue */ \