ports/openmpi
ports/openmpi
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Generate more optimal internal data representations.

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This commit was SVN r10382.
Этот коммит содержится в:
George Bosilca 2006-06-16 03:00:20 +00:00
родитель 58110f9fc9
Коммит 3219b917b9
1 изменённых файлов: 33 добавлений и 13 удалений
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46
ompi/datatype/dt_optimize.c
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@ -77,6 +77,7 @@ ompi_ddt_optimize_short( ompi_datatype_t* pData,
uint16_t last_flags = 0xFFFF; /* keep all for the first datatype */
long total_disp = 0;
int32_t optimized = 0, continuity;
uint32_t i;
pStack = alloca( sizeof(dt_stack_t) * (pData->btypes[DT_LOOP]+2) );
SAVE_STACK( pStack, -1, 0, count, 0, pData->desc.used );
@ -179,21 +180,40 @@ ompi_ddt_optimize_short( ompi_datatype_t* pData,
last_length = 0;
last_type = DT_LOOP;
}
if( (2 == loop->items) && (1 == elem->count)
&& (elem->extent == (long)ompi_ddt_basicDatatypes[elem->common.type]->size) ) {
CREATE_ELEM( pElemDesc, elem->common.type, elem->common.flags & ~DT_FLAG_CONTIGUOUS,
loop->loops, elem->disp, loop->extent );
pElemDesc++; nbElems++;
pos_desc += loop->items + 1;
changes++; optimized++;
} else {
CREATE_LOOP_START( pElemDesc, loop->loops, loop->items, loop->extent, loop->common.flags );
pElemDesc++; nbElems++;
PUSH_STACK( pStack, stack_pos, nbElems, DT_LOOP, loop->loops, total_disp, pos_desc + loop->extent );
pos_desc++;
DDT_DUMP_STACK( pStack, stack_pos, pData->desc.desc, "advance loops" );
if( 2 == loop->items ) { /* small loop */
if( (1 == elem->count)
&& (elem->extent == (long)ompi_ddt_basicDatatypes[elem->common.type]->size) ) {
CREATE_ELEM( pElemDesc, elem->common.type, elem->common.flags & ~DT_FLAG_CONTIGUOUS,
loop->loops, elem->disp, loop->extent );
pElemDesc++; nbElems++;
pos_desc += loop->items + 1;
changes++; optimized++;
goto complete_loop;
} else if( (elem->extent * (int32_t)elem->count) == loop->extent ) {
CREATE_ELEM( pElemDesc, elem->common.type, elem->common.flags,
loop->loops * elem->count, elem->disp, loop->extent );
pElemDesc++; nbElems++;
pos_desc += loop->items + 1;
changes++; optimized++;
goto complete_loop;
} else if( loop->loops < 3 ) {
for( i = 0; i < loop->loops; i++ ) {
CREATE_ELEM( pElemDesc, elem->common.type, elem->common.flags,
elem->count, elem->disp, loop->extent );
pElemDesc++; nbElems++;
}
pos_desc += loop->items + 1;
changes += loop->loops; optimized += loop->loops;
goto complete_loop;
}
}
CREATE_LOOP_START( pElemDesc, loop->loops, loop->items, loop->extent, loop->common.flags );
pElemDesc++; nbElems++;
PUSH_STACK( pStack, stack_pos, nbElems, DT_LOOP, loop->loops, total_disp, pos_desc + loop->extent );
pos_desc++;
DDT_DUMP_STACK( pStack, stack_pos, pData->desc.desc, "advance loops" );
}
complete_loop:
total_disp = pStack->disp; /* update the displacement */
continue;
}