ports/openmpi
ports/openmpi
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simplify the code abit.

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This commit was SVN r17664.
Этот коммит содержится в:
Rich Graham 2008-02-29 03:55:12 +00:00
родитель 1632d8b299
Коммит c253a7bda1
1 изменённых файлов: 87 добавлений и 186 удалений
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273
ompi/mca/coll/sm2/coll_sm2_allreduce.c
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@ -198,200 +198,101 @@ int mca_coll_sm2_allreduce_intra_fanin_fanout(void *sbuf, void *rbuf, int count,
* stage help reduce memory contention.
*/
if( ROOT_NODE == my_fanout_read_tree->my_node_type ) {
if( 0 == my_fanout_read_tree->n_parents ) {
/* I am the root - so copy signal children, and then
* start reading
*/
MB();
my_ctl_pointer->flag=-tag;
/* copy data to user supplied buffer */
rc=ompi_ddt_copy_content_same_ddt(dtype, count_this_stripe,
(char *)((char *)rbuf+dt_extent*count_processed),
(char *)my_data_pointer);
if( 0 != rc ) {
return OMPI_ERROR;
}
} else {
parent_base_temp_pointer=(char *)
((char *)sm_buffer+my_fanout_parent*
sm_module->segement_size_per_process);
parent_data_pointer=(volatile char *)
((char *)parent_base_temp_pointer+ctl_size);
parent_ctl_pointer=(volatile
mca_coll_sm2_nb_request_process_shared_mem_t *)
parent_base_temp_pointer;
child_ctl_pointer=
(volatile mca_coll_sm2_nb_request_process_shared_mem_t *)
parent_data_pointer;
/*
* wait on Parent to signal that data is ready
*/
while(!
( (parent_ctl_pointer->flag == -tag) &
(parent_ctl_pointer->index== stripe_number) ) ) {
/* Note: Actually need to make progress here */
;
}
/* copy the data to my shared buffer, for access by children */
rc=ompi_ddt_copy_content_same_ddt(dtype, count_this_stripe,
(char *)my_data_pointer,(char *)parent_data_pointer);
if( 0 != rc ) {
return OMPI_ERROR;
}
/* set memory barriet to make sure data is in main memory before
* the completion flgas are set.
*/
MB();
/* signal children that they may read the result data */
my_ctl_pointer->flag=-tag;
/* copy data to user supplied buffer */
rc=ompi_ddt_copy_content_same_ddt(dtype, count_this_stripe,
(char *)rbuf+dt_extent*count_processed,
(char *)my_data_pointer);
if( 0 != rc ) {
return OMPI_ERROR;
}
/* I am the root - so copy signal children, and then
* start reading
*/
MB();
my_ctl_pointer->flag=-tag;
/* copy data to user supplied buffer */
rc=ompi_ddt_copy_content_same_ddt(dtype, count_this_stripe,
(char *)((char *)rbuf+dt_extent*count_processed),
(char *)my_data_pointer);
if( 0 != rc ) {
return OMPI_ERROR;
}
} else if( LEAF_NODE == my_fanout_read_tree->my_node_type ) {
if( 0 == my_fanout_read_tree->n_parents ) {
/* I am the root - so copy signal children, and then
* start reading
*/
MB();
my_ctl_pointer->flag=-tag;
/* copy data to user supplied buffer */
rc=ompi_ddt_copy_content_same_ddt(dtype, count_this_stripe,
(char *)((char *)rbuf+dt_extent*count_processed),
(char *)my_data_pointer);
if( 0 != rc ) {
return OMPI_ERROR;
}
} else {
parent_base_temp_pointer=(char *)
((char *)sm_buffer+my_fanout_parent*
sm_module->segement_size_per_process);
parent_base_temp_pointer=(char *)
((char *)sm_buffer+my_fanout_parent*
sm_module->segement_size_per_process);
parent_data_pointer=(volatile char *)
((char *)parent_base_temp_pointer+ctl_size);
parent_ctl_pointer=(volatile
mca_coll_sm2_nb_request_process_shared_mem_t *)
parent_base_temp_pointer;
child_ctl_pointer=
(volatile mca_coll_sm2_nb_request_process_shared_mem_t *)
parent_data_pointer;
parent_data_pointer=(volatile char *)
((char *)parent_base_temp_pointer+ctl_size);
parent_ctl_pointer=(volatile
mca_coll_sm2_nb_request_process_shared_mem_t *)
parent_base_temp_pointer;
child_ctl_pointer=
(volatile mca_coll_sm2_nb_request_process_shared_mem_t *)
parent_data_pointer;
/*
* wait on Parent to signal that data is ready
*/
while(!
( (parent_ctl_pointer->flag == -tag) &
(parent_ctl_pointer->index== stripe_number) ) ) {
/* Note: Actually need to make progress here */
;
}
/* copy the data to my shared buffer, for access by children */
rc=ompi_ddt_copy_content_same_ddt(dtype, count_this_stripe,
(char *)my_data_pointer,(char *)parent_data_pointer);
if( 0 != rc ) {
return OMPI_ERROR;
}
/* set memory barriet to make sure data is in main memory before
* the completion flgas are set.
*/
MB();
/* signal children that they may read the result data */
my_ctl_pointer->flag=-tag;
/* copy data to user supplied buffer */
rc=ompi_ddt_copy_content_same_ddt(dtype, count_this_stripe,
(char *)rbuf+dt_extent*count_processed,
(char *)my_data_pointer);
if( 0 != rc ) {
return OMPI_ERROR;
}
/*
* wait on Parent to signal that data is ready
*/
while(!
( (parent_ctl_pointer->flag == -tag) &
(parent_ctl_pointer->index== stripe_number) ) ) {
/* Note: Actually need to make progress here */
;
}
/* copy data to user supplied buffer */
rc=ompi_ddt_copy_content_same_ddt(dtype, count_this_stripe,
(char *)rbuf+dt_extent*count_processed,
(char *)parent_data_pointer);
if( 0 != rc ) {
return OMPI_ERROR;
}
} else {
/* interior nodes */
if( 0 == my_fanout_read_tree->n_parents ) {
/* I am the root - so copy signal children, and then
* start reading
*/
MB();
my_ctl_pointer->flag=-tag;
/* copy data to user supplied buffer */
rc=ompi_ddt_copy_content_same_ddt(dtype, count_this_stripe,
(char *)((char *)rbuf+dt_extent*count_processed),
(char *)my_data_pointer);
if( 0 != rc ) {
return OMPI_ERROR;
}
} else {
parent_base_temp_pointer=(char *)
((char *)sm_buffer+my_fanout_parent*
sm_module->segement_size_per_process);
parent_base_temp_pointer=(char *)
((char *)sm_buffer+my_fanout_parent*
sm_module->segement_size_per_process);
parent_data_pointer=(volatile char *)
((char *)parent_base_temp_pointer+ctl_size);
parent_ctl_pointer=(volatile
mca_coll_sm2_nb_request_process_shared_mem_t *)
parent_base_temp_pointer;
child_ctl_pointer=
(volatile mca_coll_sm2_nb_request_process_shared_mem_t *)
parent_data_pointer;
parent_data_pointer=(volatile char *)
((char *)parent_base_temp_pointer+ctl_size);
parent_ctl_pointer=(volatile
mca_coll_sm2_nb_request_process_shared_mem_t *)
parent_base_temp_pointer;
child_ctl_pointer=
(volatile mca_coll_sm2_nb_request_process_shared_mem_t *)
parent_data_pointer;
/*
* wait on Parent to signal that data is ready
*/
while(!
( (parent_ctl_pointer->flag == -tag) &
(parent_ctl_pointer->index== stripe_number) ) ) {
/* Note: Actually need to make progress here */
;
}
/* copy the data to my shared buffer, for access by children */
rc=ompi_ddt_copy_content_same_ddt(dtype, count_this_stripe,
(char *)my_data_pointer,(char *)parent_data_pointer);
if( 0 != rc ) {
return OMPI_ERROR;
}
/* set memory barriet to make sure data is in main memory before
* the completion flgas are set.
*/
MB();
/* signal children that they may read the result data */
my_ctl_pointer->flag=-tag;
/* copy data to user supplied buffer */
rc=ompi_ddt_copy_content_same_ddt(dtype, count_this_stripe,
(char *)rbuf+dt_extent*count_processed,
(char *)my_data_pointer);
if( 0 != rc ) {
return OMPI_ERROR;
}
/*
* wait on Parent to signal that data is ready
*/
while(!
( (parent_ctl_pointer->flag == -tag) &
(parent_ctl_pointer->index== stripe_number) ) ) {
/* Note: Actually need to make progress here */
;
}
/* copy the data to my shared buffer, for access by children */
rc=ompi_ddt_copy_content_same_ddt(dtype, count_this_stripe,
(char *)my_data_pointer,(char *)parent_data_pointer);
if( 0 != rc ) {
return OMPI_ERROR;
}
/* set memory barriet to make sure data is in main memory before
* the completion flgas are set.
*/
MB();
/* signal children that they may read the result data */
my_ctl_pointer->flag=-tag;
/* copy data to user supplied buffer */
rc=ompi_ddt_copy_content_same_ddt(dtype, count_this_stripe,
(char *)rbuf+dt_extent*count_processed,
(char *)my_data_pointer);
if( 0 != rc ) {
return OMPI_ERROR;
}
}