2 This source code file is part of thread_mpi.
3 Written by Sander Pronk, Erik Lindahl, and possibly others.
5 Copyright (c) 2009, Sander Pronk, Erik Lindahl.
8 Redistribution and use in source and binary forms, with or without
9 modification, are permitted provided that the following conditions are met:
10 1) Redistributions of source code must retain the above copyright
11 notice, this list of conditions and the following disclaimer.
12 2) Redistributions in binary form must reproduce the above copyright
13 notice, this list of conditions and the following disclaimer in the
14 documentation and/or other materials provided with the distribution.
15 3) Neither the name of the copyright holders nor the
16 names of its contributors may be used to endorse or promote products
17 derived from this software without specific prior written permission.
19 THIS SOFTWARE IS PROVIDED BY US ''AS IS'' AND ANY
20 EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22 DISCLAIMED. IN NO EVENT SHALL WE BE LIABLE FOR ANY
23 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
26 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 If you want to redistribute modifications, please consider that
31 scientific software is very special. Version control is crucial -
32 bugs must be traceable. We will be happy to consider code for
33 inclusion in the official distribution, but derived work should not
34 be called official thread_mpi. Details are found in the README & COPYING
39 /* get a pointer the next coll_env once it's ready */
40 struct coll_env *tMPI_Get_cev(tMPI_Comm comm, int myrank, int *synct);
42 /* post the availability of data in a cev.
43 cev = the collective comm environment
45 index = the buffer index
47 datatype = the datatype
48 busize = the buffer size
49 buf = the buffer to xfer
50 n_remaining = the number of remaining threads that need to transfer
51 synct = the multicast sync number
52 dest = -1 for all theads, or a specific rank number.
54 int tMPI_Post_multi(struct coll_env *cev, int myrank, int index,
55 int tag, tMPI_Datatype datatype,
56 size_t bufsize, void *buf, int n_remaining,
59 /* transfer data from cev->met[rank] to recvbuf */
60 void tMPI_Mult_recv(tMPI_Comm comm, struct coll_env *cev, int rank,
61 int index, int expected_tag, tMPI_Datatype recvtype,
62 size_t recvsize, void *recvbuf, int *ret);
64 /* do a root transfer (from root send buffer to root recv buffer) */
65 void tMPI_Coll_root_xfer(tMPI_Comm comm,
66 tMPI_Datatype sendtype, tMPI_Datatype recvtype,
67 size_t sendsize, size_t recvsize,
68 void* sendbuf, void* recvbuf, int *ret);
70 /* wait for other processes to copy data from my cev */
71 void tMPI_Wait_for_others(struct coll_env *cev, int myrank);
72 /* wait for data to become available from a specific rank */
73 void tMPI_Wait_for_data(struct tmpi_thread *cur, struct coll_env *cev,
75 /*int rank, int myrank, int synct);*/