/* * Copyright (c) 2021 NVIDIA Corporation. * All rights reserved. * $COPYRIGHT$ * * Additional copyrights may follow * * $HEADER$ */ #include "oshmem_config.h" #include "oshmem/constants.h" #include "oshmem/include/shmem.h" #include "oshmem/include/shmemx.h" #include "oshmem/runtime/runtime.h" #include "oshmem/mca/atomic/atomic.h" /* * shmem_cswap performs an nonblocking atomic conditional swap operation. * The conditional swap routines write value to address target on PE pe, and return the previous * contents of target. The replacement must occur only if cond is equal to target; * otherwise target is left unchanged. In either case, the routine must return the initial value * of target. The operation must be completed without the possibility of another process updating * target between the time of the fetch and the update. */ #define DO_SHMEM_TYPE_ATOMIC_COMPARE_SWAP_NBI(ctx, type, fetch, target, cond, value, pe, out_value) do { \ int rc = OSHMEM_SUCCESS; \ size_t size = 0; \ \ RUNTIME_CHECK_INIT(); \ RUNTIME_CHECK_PE(pe); \ RUNTIME_CHECK_ADDR(target); \ \ size = sizeof(value); \ rc = MCA_ATOMIC_CALL(cswap_nb( \ ctx, \ fetch, \ (void*)target, \ (uint64_t*)&out_value, \ OSHMEM_ATOMIC_PTR_2_INT(&cond, sizeof(cond)), \ OSHMEM_ATOMIC_PTR_2_INT(&value, sizeof(value)), \ size, \ pe)); \ RUNTIME_CHECK_RC(rc); \ } while (0) #define SHMEM_CTX_TYPE_ATOMIC_COMPARE_SWAP_NBI(type_name, type, prefix) \ void prefix##_ctx##type_name##_atomic_compare_swap_nbi(shmem_ctx_t ctx, type *fetch, type *target, type cond, type value, int pe) \ { \ type out_value; \ DO_SHMEM_TYPE_ATOMIC_COMPARE_SWAP_NBI(ctx, type, fetch, target, cond, value, \ pe, out_value); \ return ; \ } #define SHMEM_TYPE_ATOMIC_COMPARE_SWAP_NBI(type_name, type, prefix) \ void prefix##type_name##_atomic_compare_swap_nbi(type *fetch, type *target, type cond, type value, int pe) \ { \ type out_value; \ DO_SHMEM_TYPE_ATOMIC_COMPARE_SWAP_NBI(oshmem_ctx_default, type, fetch, target, \ cond, value, pe, out_value); \ return ; \ } #if OSHMEM_PROFILING #include "oshmem/include/pshmem.h" /* Nonblocking Atomic Compare Swap */ #pragma weak shmem_ctx_int_atomic_compare_swap_nbi = pshmem_ctx_int_atomic_compare_swap_nbi #pragma weak shmem_ctx_long_atomic_compare_swap_nbi = pshmem_ctx_long_atomic_compare_swap_nbi #pragma weak shmem_ctx_longlong_atomic_compare_swap_nbi = pshmem_ctx_longlong_atomic_compare_swap_nbi #pragma weak shmem_ctx_uint_atomic_compare_swap_nbi = pshmem_ctx_uint_atomic_compare_swap_nbi #pragma weak shmem_ctx_ulong_atomic_compare_swap_nbi = pshmem_ctx_ulong_atomic_compare_swap_nbi #pragma weak shmem_ctx_ulonglong_atomic_compare_swap_nbi = pshmem_ctx_ulonglong_atomic_compare_swap_nbi #pragma weak shmem_ctx_int32_atomic_compare_swap_nbi = pshmem_ctx_int32_atomic_compare_swap_nbi #pragma weak shmem_ctx_int64_atomic_compare_swap_nbi = pshmem_ctx_int64_atomic_compare_swap_nbi #pragma weak shmem_ctx_uint32_atomic_compare_swap_nbi = pshmem_ctx_uint32_atomic_compare_swap_nbi #pragma weak shmem_ctx_uint64_atomic_compare_swap_nbi = pshmem_ctx_uint64_atomic_compare_swap_nbi #pragma weak shmem_ctx_size_atomic_compare_swap_nbi = pshmem_ctx_size_atomic_compare_swap_nbi #pragma weak shmem_ctx_ptrdiff_atomic_compare_swap_nbi = pshmem_ctx_ptrdiff_atomic_compare_swap_nbi #pragma weak shmem_int_atomic_compare_swap_nbi = pshmem_int_atomic_compare_swap_nbi #pragma weak shmem_long_atomic_compare_swap_nbi = pshmem_long_atomic_compare_swap_nbi #pragma weak shmem_longlong_atomic_compare_swap_nbi = pshmem_longlong_atomic_compare_swap_nbi #pragma weak shmem_uint_atomic_compare_swap_nbi = pshmem_uint_atomic_compare_swap_nbi #pragma weak shmem_ulong_atomic_compare_swap_nbi = pshmem_ulong_atomic_compare_swap_nbi #pragma weak shmem_ulonglong_atomic_compare_swap_nbi = pshmem_ulonglong_atomic_compare_swap_nbi #pragma weak shmem_int32_atomic_compare_swap_nbi = pshmem_int32_atomic_compare_swap_nbi #pragma weak shmem_int64_atomic_compare_swap_nbi = pshmem_int64_atomic_compare_swap_nbi #pragma weak shmem_uint32_atomic_compare_swap_nbi = pshmem_uint32_atomic_compare_swap_nbi #pragma weak shmem_uint64_atomic_compare_swap_nbi = pshmem_uint64_atomic_compare_swap_nbi #pragma weak shmem_size_atomic_compare_swap_nbi = pshmem_size_atomic_compare_swap_nbi #pragma weak shmem_ptrdiff_atomic_compare_swap_nbi = pshmem_ptrdiff_atomic_compare_swap_nbi #include "oshmem/shmem/c/profile-defines.h" #endif SHMEM_CTX_TYPE_ATOMIC_COMPARE_SWAP_NBI(_int, int, shmem) SHMEM_CTX_TYPE_ATOMIC_COMPARE_SWAP_NBI(_long, long, shmem) SHMEM_CTX_TYPE_ATOMIC_COMPARE_SWAP_NBI(_longlong, long long, shmem) SHMEM_CTX_TYPE_ATOMIC_COMPARE_SWAP_NBI(_uint, unsigned int, shmem) SHMEM_CTX_TYPE_ATOMIC_COMPARE_SWAP_NBI(_ulong, unsigned long, shmem) SHMEM_CTX_TYPE_ATOMIC_COMPARE_SWAP_NBI(_ulonglong, unsigned long long, shmem) SHMEM_CTX_TYPE_ATOMIC_COMPARE_SWAP_NBI(_int32, int32_t, shmem) SHMEM_CTX_TYPE_ATOMIC_COMPARE_SWAP_NBI(_int64, int64_t, shmem) SHMEM_CTX_TYPE_ATOMIC_COMPARE_SWAP_NBI(_uint32, uint32_t, shmem) SHMEM_CTX_TYPE_ATOMIC_COMPARE_SWAP_NBI(_uint64, uint64_t, shmem) SHMEM_CTX_TYPE_ATOMIC_COMPARE_SWAP_NBI(_size, size_t, shmem) SHMEM_CTX_TYPE_ATOMIC_COMPARE_SWAP_NBI(_ptrdiff, ptrdiff_t, shmem) SHMEM_TYPE_ATOMIC_COMPARE_SWAP_NBI(_int, int, shmem) SHMEM_TYPE_ATOMIC_COMPARE_SWAP_NBI(_long, long, shmem) SHMEM_TYPE_ATOMIC_COMPARE_SWAP_NBI(_longlong, long long, shmem) SHMEM_TYPE_ATOMIC_COMPARE_SWAP_NBI(_uint, unsigned int, shmem) SHMEM_TYPE_ATOMIC_COMPARE_SWAP_NBI(_ulong, unsigned long, shmem) SHMEM_TYPE_ATOMIC_COMPARE_SWAP_NBI(_ulonglong, unsigned long long, shmem) SHMEM_TYPE_ATOMIC_COMPARE_SWAP_NBI(_int32, int32_t, shmem) SHMEM_TYPE_ATOMIC_COMPARE_SWAP_NBI(_int64, int64_t, shmem) SHMEM_TYPE_ATOMIC_COMPARE_SWAP_NBI(_uint32, uint32_t, shmem) SHMEM_TYPE_ATOMIC_COMPARE_SWAP_NBI(_uint64, uint64_t, shmem) SHMEM_TYPE_ATOMIC_COMPARE_SWAP_NBI(_size, size_t, shmem) SHMEM_TYPE_ATOMIC_COMPARE_SWAP_NBI(_ptrdiff, ptrdiff_t, shmem)