StarPU Internal Handbook
starpu_mpi_nmad_backend.h
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1 /* StarPU --- Runtime system for heterogeneous multicore architectures.
2  *
3  * Copyright (C) 2009-2022 Université de Bordeaux, CNRS (LaBRI UMR 5800), Inria
4  *
5  * StarPU is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU Lesser General Public License as published by
7  * the Free Software Foundation; either version 2.1 of the License, or (at
8  * your option) any later version.
9  *
10  * StarPU is distributed in the hope that it will be useful, but
11  * WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13  *
14  * See the GNU Lesser General Public License in COPYING.LGPL for more details.
15  */
16 
17 #ifndef __STARPU_MPI_NMAD_BACKEND_H__
18 #define __STARPU_MPI_NMAD_BACKEND_H__
19 
20 #include <common/config.h>
21 #include <common/starpu_spinlock.h>
22 
25 #ifdef __cplusplus
26 extern "C"
27 {
28 #endif
29 
30 #ifdef STARPU_USE_MPI_NMAD
31 
32 #include <nm_sendrecv_interface.h>
33 #include <nm_session_interface.h>
34 #include <nm_mpi_nmad.h>
35 
37 {
38  nm_gate_t gate;
39  nm_session_t session;
40  nm_sr_request_t data_request;
41  piom_cond_t req_cond;
42 
43  int posted; // with coop, only one request is really posted, we need to know if the request was really posted to possibly free data
44  int has_received_data; // tell if request went through _starpu_mpi_handle_received_data() to release write lock
45  int finalized; // tell if _starpu_mpi_handle_request_termination() was called, so starpu_mpi_test() and starpu_mpi_wait() have to free the request
46  int to_destroy; // tell if starpu_mpi_wait() or starpu_mpi_test() was called before _starpu_mpi_handle_request_termination() and thus this last function will have to free the request
47  struct _starpu_spinlock finalized_to_destroy_lock;
48 
50  struct nm_data_s unknown_datatype_data; // will contain size of the datatype and data itself
51  struct iovec unknown_datatype_v[2];
52 };
53 
54 #endif // STARPU_USE_MPI_NMAD
55 
56 #ifdef __cplusplus
57 }
58 #endif
59 
60 #endif // __STARPU_MPI_NMAD_BACKEND_H__
struct nm_data_s unknown_datatype_data
Definition: starpu_mpi_nmad_backend.h:50
Definition: starpu_mpi_mpi_backend.h:59
Definition: starpu_spinlock.h:82