Files
rocm-systems/include/rocshmem/rocshmem_mpi.hpp
T
Edgar Gabriel e4c427a736 Remove MPI compile-time dependency (#264)
* use dlsym for MPI functions

to allow compiling without MPI support, convert the usage of MPI functions and symbols to be based on a dlopen/dlsym based mechanism. Turns out this cannot be done entirely vendor neutral, slightly different solutions might be required for Open MPI, MPICH and the new MPI ABI.

* checkpoint

more work to be done.

* checkpoint 2

* checkpoint 3

* checkpoint 4

examples compile and link correctly

* checkpoitn 5 (I think)

* Checkpoitn 6

* dyld-mpi: adapt GDA

* dyldmpi: tests that depend on MPI need to link with it themselves

* do not ../mpi_instance.h

* dyldmpi: make the symetricHeapTestFixture compile

* dyldmpi: Change cmakery, compiles and run gda w/o external MPI

* Make it also compile in external MPI mode

* dyldmpi: ipc unit tests compile but do not link

* dyldmpi: new approach, if external mpi required, link with mpi,
otherwise use ompi5 abi

* C-style comments in cmakelist..

* dyldmpi: examples: do not fail compiling if MPI not found at build time,
instead do not compile the MPI required examples

* more updates to CMake logic

* convert RO backend

and a few other cleanups

* update some unit tests

to work with the dlopen MPI environment correctly.

---------

Co-authored-by: Aurelien Bouteiller <abouteil@amd.com>
2025-10-01 08:06:56 -05:00

144 baris
5.9 KiB
C++

/******************************************************************************
* Copyright (c) Advanced Micro Devices, Inc. All rights reserved.
*
* SPDX-License-Identifier: MIT
*
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* The above copyright notice and this permission notice shall be included in
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*****************************************************************************/
#ifndef LIBRARY_INCLUDE_ROCSHMEM_MPI_HPP
#define LIBRARY_INCLUDE_ROCSHMEM_MPI_HPP
#if defined(HAVE_EXTERNAL_MPI)
#include <mpi.h>
#endif
#if defined(c_plusplus) || defined(__cplusplus)
extern "C" {
#endif
#if !defined(MPI_VERSION)
// Open MPI based values for the constants/handles etc.
// Even though we did not include an external MPI header file
// The includer may have (e.g., a unit test).
typedef void* MPI_Comm;
typedef void* MPI_Win;
typedef void* MPI_Group;
typedef void* MPI_Op;
typedef void* MPI_Datatype;
typedef void* MPI_Request;
typedef void* MPI_Info;
struct ompi_status_public_t {
int MPI_SOURCE;
int MPI_TAG;
int MPI_ERROR;
int _cancelled;
size_t _ucount;
};
typedef struct ompi_status_public_t MPI_Status;
#define MPI_Aint uint64_t
#define MPI_UNDEFINED -32766
#define MPI_THREAD_MULTIPLE 3
#define MPI_SUCCESS 0
#define MPI_IN_PLACE (void*)1
#define MPI_MODE_NOCHECK 1
#define MPI_COMM_TYPE_SHARED 0
#define MPI_Aint_diff(addr1, addr2) ((MPI_Aint) ((char *) (addr1) - (char *) (addr2)))
struct ompi_internal_symbols_t {
void *ompi_mpi_comm_world;
void *ompi_mpi_comm_null;
void *ompi_request_null;
void *ompi_mpi_info_null;
void *ompi_mpi_datatype_null;
void *ompi_mpi_op_max;
void *ompi_mpi_op_min;
void *ompi_mpi_op_sum;
void *ompi_mpi_op_prod;
void *ompi_mpi_op_band;
void *ompi_mpi_op_bor;
void *ompi_mpi_op_bxor;
void *ompi_mpi_op_replace;
void *ompi_mpi_op_no_op;
void *ompi_mpi_char;
void *ompi_mpi_unsigned_char;
void *ompi_mpi_signed_char;
void *ompi_mpi_short;
void *ompi_mpi_unsigned_short;
void *ompi_mpi_int;
void *ompi_mpi_unsigned;
void *ompi_mpi_long;
void *ompi_mpi_unsigned_long;
void *ompi_mpi_long_long_int;
void *ompi_mpi_unsigned_long_long;
void *ompi_mpi_float;
void *ompi_mpi_double;
void *ompi_mpi_long_double;
};
extern struct ompi_internal_symbols_t ompi_symbols_;
#define OMPI_PREDEFINED_GLOBAL(type, global) (static_cast<type> (global))
#define MPI_COMM_WORLD OMPI_PREDEFINED_GLOBAL(MPI_Comm, ompi_symbols_.ompi_mpi_comm_world)
#define MPI_COMM_NULL OMPI_PREDEFINED_GLOBAL(MPI_Comm, ompi_symbols_.ompi_mpi_comm_null)
#define MPI_REQUEST_NULL OMPI_PREDEFINED_GLOBAL(MPI_Request, ompi_symbols_.ompi_request_null)
#define MPI_WIN_NULL OMPI_PREDEFINED_GLOBAL(MPI_Win, ompi_symbols_.ompi_mpi_win_null)
#define MPI_INFO_NULL OMPI_PREDEFINED_GLOBAL(MPI_Info, ompi_symbols_.ompi_mpi_info_null)
#define MPI_MAX OMPI_PREDEFINED_GLOBAL(MPI_Op, ompi_symbols_.ompi_mpi_op_max)
#define MPI_MIN OMPI_PREDEFINED_GLOBAL(MPI_Op, ompi_symbols_.ompi_mpi_op_min)
#define MPI_SUM OMPI_PREDEFINED_GLOBAL(MPI_Op, ompi_symbols_.ompi_mpi_op_sum)
#define MPI_PROD OMPI_PREDEFINED_GLOBAL(MPI_Op, ompi_symbols_.ompi_mpi_op_prod)
#define MPI_BAND OMPI_PREDEFINED_GLOBAL(MPI_Op, ompi_symbols_.ompi_mpi_op_band)
#define MPI_BOR OMPI_PREDEFINED_GLOBAL(MPI_Op, ompi_symbols_.ompi_mpi_op_bor)
#define MPI_BXOR OMPI_PREDEFINED_GLOBAL(MPI_Op, ompi_symbols_.ompi_mpi_op_bxor)
#define MPI_REPLACE OMPI_PREDEFINED_GLOBAL(MPI_Op, ompi_symbols_.ompi_mpi_op_replace)
#define MPI_NO_OP OMPI_PREDEFINED_GLOBAL(MPI_Op, ompi_symbols_.ompi_mpi_op_no_op)
#define MPI_DATATYPE_NULL OMPI_PREDEFINED_GLOBAL(MPI_Datatype, ompi_symbols_.ompi_mpi_datatype_null)
#define MPI_CHAR OMPI_PREDEFINED_GLOBAL(MPI_Datatype, ompi_symbols_.ompi_mpi_char)
#define MPI_UNSIGNED_CHAR OMPI_PREDEFINED_GLOBAL(MPI_Datatype, ompi_symbols_.ompi_mpi_unsigned_char)
#define MPI_SIGNED_CHAR OMPI_PREDEFINED_GLOBAL(MPI_Datatype, ompi_symbols_.ompi_mpi_signed_char)
#define MPI_SHORT OMPI_PREDEFINED_GLOBAL(MPI_Datatype, ompi_symbols_.ompi_mpi_short)
#define MPI_UNSIGNED_SHORT OMPI_PREDEFINED_GLOBAL(MPI_Datatype, ompi_symbols_.ompi_mpi_unsigned_short)
#define MPI_INT OMPI_PREDEFINED_GLOBAL(MPI_Datatype, ompi_symbols_.ompi_mpi_int)
#define MPI_UNSIGNED OMPI_PREDEFINED_GLOBAL(MPI_Datatype, ompi_symbols_.ompi_mpi_unsigned)
#define MPI_LONG OMPI_PREDEFINED_GLOBAL(MPI_Datatype, ompi_symbols_.ompi_mpi_long)
#define MPI_UNSIGNED_LONG OMPI_PREDEFINED_GLOBAL(MPI_Datatype, ompi_symbols_.ompi_mpi_unsigned_long)
#define MPI_LONG_LONG OMPI_PREDEFINED_GLOBAL(MPI_Datatype, ompi_symbols_.ompi_mpi_long_long_int)
#define MPI_UNSIGNED_LONG_LONG OMPI_PREDEFINED_GLOBAL(MPI_Datatype, ompi_symbols_.ompi_mpi_unsigned_long_long)
#define MPI_FLOAT OMPI_PREDEFINED_GLOBAL(MPI_Datatype, ompi_symbols_.ompi_mpi_float)
#define MPI_DOUBLE OMPI_PREDEFINED_GLOBAL(MPI_Datatype, ompi_symbols_.ompi_mpi_double)
#define MPI_LONG_DOUBLE OMPI_PREDEFINED_GLOBAL(MPI_Datatype, ompi_symbols_.ompi_mpi_long_double)
#endif //!defined(MPI_VERSION)
#if defined(c_plusplus) || defined(__cplusplus)
}
#endif
#endif //LIBRARY_INCLUDE_ROCSHMEM_MPI_HPP