/*
-This source code file is part of thread_mpi.
-Written by Sander Pronk, Erik Lindahl, and possibly others.
+ This source code file is part of thread_mpi.
+ Written by Sander Pronk, Erik Lindahl, and possibly others.
-Copyright (c) 2009, Sander Pronk, Erik Lindahl.
-All rights reserved.
+ Copyright (c) 2009, Sander Pronk, Erik Lindahl.
+ All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-1) Redistributions of source code must retain the above copyright
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+ 1) Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
-2) Redistributions in binary form must reproduce the above copyright
+ 2) Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
-3) Neither the name of the copyright holders nor the
+ 3) Neither the name of the copyright holders nor the
names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
-THIS SOFTWARE IS PROVIDED BY US ''AS IS'' AND ANY
-EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-DISCLAIMED. IN NO EVENT SHALL WE BE LIABLE FOR ANY
-DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-If you want to redistribute modifications, please consider that
-scientific software is very special. Version control is crucial -
-bugs must be traceable. We will be happy to consider code for
-inclusion in the official distribution, but derived work should not
-be called official thread_mpi. Details are found in the README & COPYING
-files.
-*/
+ THIS SOFTWARE IS PROVIDED BY US ''AS IS'' AND ANY
+ EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL WE BE LIABLE FOR ANY
+ DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+ If you want to redistribute modifications, please consider that
+ scientific software is very special. Version control is crucial -
+ bugs must be traceable. We will be happy to consider code for
+ inclusion in the official distribution, but derived work should not
+ be called official thread_mpi. Details are found in the README & COPYING
+ files.
+ */
/*#define TMPI_DEBUG*/
/* If this is defined, thread_mpi will print a message when for every MPI
- call is called or returns. Useful for debugging MPI-related issues
+ call is called or returns. Useful for debugging MPI-related issues
in the calling program. */
/*#define TMPI_TRACE*/
/* if this is defined, MPI will warn/hang/crash on practices that don't conform
to the MPI standard (such as not calling tMPI_Comm_free on all threads that
are part of the comm being freed). */
-#define TMPI_STRICT
+#define TMPI_STRICT
-/* whether to warn if there are mallocs at performance-critical sections
+/* whether to warn if there are mallocs at performance-critical sections
(due to preallocations being too small) */
/*#define TMPI_WARN_MALLOC*/
#define MAX_PREALLOC_THREADS 64
/* Whether to use lock-free lists using compare-and-swap (cmpxchg on x86)
- pointer functions. Message passing using blocking Send/Recv, and multicasts
+ pointer functions. Message passing using blocking Send/Recv, and multicasts
are is still blocking, of course. */
#define TMPI_LOCK_FREE_LISTS
/* Whether to disable yielding to the OS scheduler during waits. Disabling
- this improves performance very slightly if Nthreads<=Ncores on an
+ this improves performance very slightly if Nthreads<=Ncores on an
otherwise idle system because waits have slightly lower latencies, but
causes very poor performance if threads are competing for CPU time (for
- example, when Nthreads>Ncores, or another process is running on the
+ example, when Nthreads>Ncores, or another process is running on the
system.
This option can be set with cmake. */
-/*#define TMPI_WAIT_FOR_NO_ONE */
+/*#define TMPI_WAIT_FOR_NO_ONE */
-/* whether to enable double-copying (where the sender copies data to an
+/* whether to enable double-copying (where the sender copies data to an
intermediate buffer for small enough buffers, allowing it to return
from a blocking send call early. The receiver is free to copy from the
original buffer while the sender is copying, possibly allowing them to
- work in parallel).
-
+ work in parallel).
+
This option can be set with cmake. */
/*#define TMPI_COPY_BUFFER*/
-/* The size (in bytes) of the maximum transmission size for which double
- copying is allowed (i.e. the sender doesn't wait for the receiver to
+/* The size (in bytes) of the maximum transmission size for which double
+ copying is allowed (i.e. the sender doesn't wait for the receiver to
become ready, but posts a copied buffer in its envelope).
A size of 8192 bytes was chosen after some testing with Gromacs. */
/* The number of collective envelopes per comm object. This is the maximum
- number of simulataneous collective communications that can
+ number of simulataneous collective communications that can
take place per comm object. If TMPI_NO_COPY_BUFFER is set, simultaneous
collective communications don't happen and 2 is the right value. */
#ifdef USE_COLLECTIVE_COPY_BUFFER
#endif
-/* Whether to do profiling of the number of MPI communication calls. A
+/* Whether to do profiling of the number of MPI communication calls. A
report with the total number of calls for each communication function
- will be generated at MPI_Finalize().
-
+ will be generated at MPI_Finalize().
+
This option can be set with cmake.*/
/*#define TMPI_PROFILE*/
-/* whether to turn on thread affinity (required for NUMA optimizations)
+/* whether to turn on thread affinity (required for NUMA optimizations)
if the number of threads to spawn is equal to the number of processors. */
#define TMPI_THREAD_AFFINITY
-
-
biod.pnpi.spb.ru / alexxy / gromacs.git / blobdiff