55 строки
2.4 KiB
C
55 строки
2.4 KiB
C
/*
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* Copyright (c) 2013 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-and-add operation.
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* The fetch and add routines retrieve the value at address target on PE pe, and update
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* target with the result of adding value to the retrieved value. The operation must be completed
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* without the possibility of another process updating target between the time of the
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* fetch and the update.
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*/
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#define SHMEM_TYPE_FADD(type_name, type) \
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type shmem##type_name##_fadd(type *target, type value, 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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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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SHMEM_TYPE_FADD(_int, int)
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SHMEM_TYPE_FADD(_long, long)
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SHMEM_TYPE_FADD(_longlong, long long)
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