72 строки
3.0 KiB
C
72 строки
3.0 KiB
C
/*
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* Copyright (c) 2016 Mellanox Technologies, Inc.
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* All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "oshmem_config.h"
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#include "oshmem/constants.h"
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#include "oshmem/include/shmem.h"
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#include "oshmem/runtime/runtime.h"
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#include "oshmem/op/op.h"
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#include "oshmem/mca/atomic/atomic.h"
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/*
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* These routines perform an atomic fetch operation.
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* The fetch routines retrieve the value at address target on PE pe.
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* The operation must be completed without the possibility of another process
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* updating target during the fetch.
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*/
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#define SHMEM_TYPE_FETCH(type_name, type, prefix) \
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type prefix##type_name##_fetch(const type *target, int pe) \
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{ \
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int rc = OSHMEM_SUCCESS; \
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size_t size = 0; \
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type out_value; \
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type value = 0; \
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oshmem_op_t* op = oshmem_op_sum##type_name; \
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\
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RUNTIME_CHECK_INIT(); \
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RUNTIME_CHECK_PE(pe); \
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RUNTIME_CHECK_ADDR(target); \
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\
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size = sizeof(out_value); \
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rc = MCA_ATOMIC_CALL(fadd( \
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(void*)target, \
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(void*)&out_value, \
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(const void*)&value, \
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size, \
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pe, \
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op)); \
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RUNTIME_CHECK_RC(rc); \
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\
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return out_value; \
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}
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#if OSHMEM_PROFILING
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#include "oshmem/include/pshmem.h"
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#pragma weak shmem_int_fetch = pshmem_int_fetch
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#pragma weak shmem_long_fetch = pshmem_long_fetch
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#pragma weak shmem_longlong_fetch = pshmem_longlong_fetch
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#pragma weak shmem_double_fetch = pshmem_double_fetch
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#pragma weak shmem_float_fetch = pshmem_float_fetch
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#pragma weak shmemx_int32_fetch = pshmemx_int32_fetch
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#pragma weak shmemx_int64_fetch = pshmemx_int64_fetch
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#include "oshmem/shmem/c/profile/defines.h"
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#endif
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SHMEM_TYPE_FETCH(_int, int, shmem)
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SHMEM_TYPE_FETCH(_long, long, shmem)
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SHMEM_TYPE_FETCH(_longlong, long long, shmem)
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SHMEM_TYPE_FETCH(_double, double, shmem)
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SHMEM_TYPE_FETCH(_float, float, shmem)
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SHMEM_TYPE_FETCH(_int32, int32_t, shmemx)
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SHMEM_TYPE_FETCH(_int64, int64_t, shmemx)
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