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README.special
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README.special
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Copyright (c) 2013, Intel Corporation
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* 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.
* Neither the name of Intel Corporation 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 THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"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 THE
COPYRIGHT OWNER OR CONTRIBUTORS 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.
******************************************************************
This files contains instructions for building and running PRKs using
the Charm++, OpenSHMEM, Grappa, or Fine-Grain MPI runtimes.
These runtimes need to be installed, and you need to specify in file
PRKROOT/common/make.defs where they are located. Note that if Charm++,
OpenSHMEM or Grappa are built on top of MPI, MPI does need to be
installed, even if it is not called directly.
Grappa
------
This runtime requires cmake to install. Compile and link flags depend
on the particulars of the installation and cannot be specified
uniformly. Hence, it is necessary to obtain them from the Grappa
installation, after building it. This is done automatically by
including an autogenerated make include file from the Grappa
installation directory. Grappa programs are best run using standard
MPI tools like mpiexec.hydra, with the usual command line parameters.
Before building or running Grappa code, source bin/settings.sh from
the Grappa installation directory.
Charm++
-------
The run script charmrun may not give the desired result. If Charm++
is built to use MPI, the code can be run in most cases by using
mpiexec.hydra, with the usual command line parameters.
Adaptive MPI
------------
This runtime is based on Charm++ and can be built from its sources.
Fine-Grain MPI
--------------
Care must be taken to use the specific MPI version supporting this
runtime, which must be built explicitly. Codes are run using the
Fine-Grain MPI version of mpiexec.hydra. This name may well clash
with the version of mpiexec.hydra supporting standard MPI. Such a
conflict may be avoided by starting a sub-shell for FG_MPI runs and
changing path variables only inside that shell. Scripts in the
PRKROOT/Run directory employ this technique automatically and do
not need to be modified for proper execution.