Topic/osc mt (modified) #3
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artpol84
suggested changes
Nov 11, 2018
| size_t len; | ||
| } ucx_iovec_t; | ||
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| OBJ_CLASS_INSTANCE(thread_local_info_t, opal_list_item_t, NULL, NULL); |
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- Has to be in the common/ucx *.c file
- let's create constructor/destructor
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| OBJ_CLASS_INSTANCE(thread_local_info_t, opal_list_item_t, NULL, NULL); | ||
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| pthread_key_t my_thread_key = {0}; |
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- This has to be declared in common/ucx/ *.c file
- Use opal_common_ucx_ prefix
- extern declaration has to be in common/ucx
| if (ret != OMPI_SUCCESS) { | ||
| return ret; | ||
| } | ||
| pthread_mutex_unlock(&mca_osc_ucx_component.worker_mutex); |
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- Move this into the common code.
- Make this function inline and provide the parameter to select either EP or worker flush (to allow compiler static optimization
inline in func(int flag){
{
....
if( flag ){
do1;
} else {
do2;
}
....
}
....
func(0); // compiler will optimiza and remove if branch| static void ompi_osc_ucx_unregister_progress(void); | ||
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| opal_list_t active_workers = {{0}}, idle_workers = {{0}}; | ||
| pthread_mutex_t active_workers_mutex = PTHREAD_MUTEX_INITIALIZER; |
| int flavor, int *model); | ||
| static void ompi_osc_ucx_unregister_progress(void); | ||
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| opal_list_t active_workers = {{0}}, idle_workers = {{0}}; |
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This one also goes to the common code
| UCP_PARAM_FIELD_MT_WORKERS_SHARED | | ||
| UCP_PARAM_FIELD_ESTIMATED_NUM_EPS | | ||
| UCP_PARAM_FIELD_REQUEST_INIT | | ||
| UCP_PARAM_FIELD_REQUEST_SIZE; |
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- have a hadler that describes UCX worker pool
- UCX context
- list of active/idle workers
- all required thread-level information.
handler = opal_common_ucx_workerpool_init(allgather_ptr, allgatherv_ptr);
opal_common_ucx_workerpool_init
- Initializes UCX: context creation
- create main worker
- exchange EP's
- records main thread
| ompi_datatype_type_size(origin_dt, &origin_len); | ||
| origin_len *= origin_count; | ||
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| pthread_mutex_lock(mutex_ptr); |
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This code block goes into the common code.
| curr_len = MIN(origin_ucx_iov[origin_ucx_iov_idx].len, | ||
| target_ucx_iov[target_ucx_iov_idx].len); | ||
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| pthread_mutex_lock(mutex_ptr); |
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- This block goes to common
- Make sure to always unlock (including the error path)
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this has to be an inline function with argument put/get that will allow static compile optimization
| } else if (!is_origin_contig) { | ||
| size_t prev_len = 0; | ||
| while (origin_ucx_iov_idx < origin_ucx_iov_count) { | ||
| pthread_mutex_lock(mutex_ptr); |
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- This block goes to common
- See above comment about locks
| } else { | ||
| size_t prev_len = 0; | ||
| while (target_ucx_iov_idx < target_ucx_iov_count) { | ||
| pthread_mutex_lock(mutex_ptr); |
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- This block also goes to the common
- see above about locks
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