/usr/include/sc_reduce.h is in libp4est-dev 1.1-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 | /*
This file is part of the SC Library.
The SC Library provides support for parallel scientific applications.
Copyright (C) 2010 The University of Texas System
The SC Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The SC Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the SC Library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
*/
#ifndef SC_REDUCE_H
#define SC_REDUCE_H
#include <sc.h>
/* highest level that uses all-to-all instead of recursion */
#ifndef SC_REDUCE_ALLTOALL_LEVEL
#define SC_REDUCE_ALLTOALL_LEVEL 3
#endif
SC_EXTERN_C_BEGIN;
typedef void (*sc_reduce_t) (void *sendbuf, void *recvbuf,
int sendcount, sc_MPI_Datatype sendtype);
/** Custom allreduce operation.
*/
int sc_allreduce_custom (void *sendbuf, void *recvbuf,
int sendcount,
sc_MPI_Datatype sendtype,
sc_reduce_t reduce_fn,
sc_MPI_Comm mpicomm);
/** Custom reduce operation.
* \param [in] target The MPI rank that obtains the result.
*/
int sc_reduce_custom (void *sendbuf, void *recvbuf,
int sendcount, sc_MPI_Datatype sendtype,
sc_reduce_t reduce_fn,
int target, sc_MPI_Comm mpicomm);
/** Drop-in MPI_Allreduce replacement.
*/
int sc_allreduce (void *sendbuf, void *recvbuf, int sendcount,
sc_MPI_Datatype sendtype,
sc_MPI_Op operation, sc_MPI_Comm mpicomm);
/** Drop-in MPI_Reduce replacement.
* \param [in] target The MPI rank that obtains the result.
*/
int sc_reduce (void *sendbuf, void *recvbuf, int sendcount,
sc_MPI_Datatype sendtype, sc_MPI_Op operation,
int target, sc_MPI_Comm mpicomm);
SC_EXTERN_C_END;
#endif /* !SC_REDUCE_H */
|