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openmpi/opal/mca/paffinity/windows/paffinity_windows_module.c
2008-07-23 07:59:03 +00:00

153 строки
4.4 KiB
C

/*
* Copyright (c) 2004-2008 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2006 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2008 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "opal_config.h"
#include "opal/constants.h"
#include "opal/mca/base/mca_base_param.h"
#include "opal/mca/paffinity/paffinity.h"
#include "opal/mca/paffinity/base/base.h"
#include "paffinity_windows.h"
/*
* Local functions
*/
static int windows_module_init(void);
static int windows_module_finalize(void);
static int windows_module_get_num_procs(int *num_procs);
static int windows_module_set(opal_paffinity_base_cpu_set_t cpumask);
static int windows_module_get(opal_paffinity_base_cpu_set_t *cpumask);
static int windows_module_map_to_processor_id(int socket, int core, int *processor_id);
static int windows_module_map_to_socket_core(int processor_id, int *socket, int *core);
static int windows_module_get_processor_info(int *num_processors, int *max_processor_id);
static int windows_module_get_socket_info(int *num_sockets, int *max_socket_num);
static int windows_module_get_core_info(int socket, int *num_cores, int *max_core_num);
static SYSTEM_INFO sys_info;
/*
* Windows paffinity module
*/
static const opal_paffinity_base_module_1_1_0_t loc_module = {
/* Initialization function */
windows_module_init,
/* Module function pointers */
windows_module_set,
windows_module_get,
windows_module_map_to_processor_id,
windows_module_map_to_socket_core,
windows_module_get_processor_info,
windows_module_get_socket_info,
windows_module_get_core_info,
windows_module_finalize
};
int opal_paffinity_windows_component_query(mca_base_module_t **module, int *priority)
{
int param;
param = mca_base_param_find("paffinity", "windows", "priority");
mca_base_param_lookup_int(param, priority);
*module = (mca_base_module_t *)&loc_module;
return OPAL_SUCCESS;
}
static int windows_module_finalize(void)
{
return OPAL_SUCCESS;
}
static int windows_module_init(void)
{
GetSystemInfo( &sys_info );
return OPAL_SUCCESS;
}
static int windows_module_get_num_procs(int *num_procs)
{
*num_procs = sys_info.dwNumberOfProcessors;
return OPAL_SUCCESS;
}
static int windows_module_set(opal_paffinity_base_cpu_set_t cpumask)
{
HANDLE threadid = GetCurrentThread();
DWORD_PTR process_mask, system_mask;
if( !GetProcessAffinityMask( threadid, &process_mask, &system_mask ) ) {
return OPAL_ERR_NOT_FOUND;
}
if( (int)(1 << cpumask.bitmask[0]) & (system_mask & 0xFFFFFFFF) ) {
process_mask = (int)(1 << cpumask.bitmask[0]);
if( SetThreadAffinityMask( threadid, process_mask ) )
return OPAL_SUCCESS;
/* otherwise something went wrong */
}
/* the specified processor is not enabled system wide */
return OPAL_ERR_NOT_FOUND;
}
static int windows_module_get(opal_paffinity_base_cpu_set_t *cpumask)
{
HANDLE threadid = GetCurrentThread();
DWORD_PTR process_mask, system_mask;
if( GetProcessAffinityMask( threadid, &process_mask, &system_mask ) ) {
cpumask->bitmask[0] = (opal_paffinity_base_bitmask_t)process_mask;
return OPAL_SUCCESS;
}
cpumask->bitmask[0] = 1;
return OPAL_ERR_BAD_PARAM;
}
static int windows_module_map_to_processor_id(int socket, int core, int *processor_id)
{
return OPAL_ERR_NOT_SUPPORTED;
}
static int windows_module_map_to_socket_core(int processor_id, int *socket, int *core)
{
return OPAL_ERR_NOT_SUPPORTED;
}
static int windows_module_get_processor_info(int *num_processors, int *max_processor_id)
{
*num_processors = *max_processor_id = sys_info.dwNumberOfProcessors;
return OPAL_SUCCESS;
}
static int windows_module_get_socket_info(int *num_sockets, int *max_socket_num)
{
return OPAL_ERR_NOT_SUPPORTED;
}
static int windows_module_get_core_info(int socket, int *num_cores, int *max_core_num)
{
return OPAL_ERR_NOT_SUPPORTED;
}