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README
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README
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QMP implementation over MPICH and single node
June 9, 2004
QMP over MPICH and single node are implemented according to the
documents of LQCD Message Passing API version 2.0 (Jun, 2004). The
implementations supports most of APIs specified in the document. Those
unsupported routines will be implemented in future releases.
QMP over MPICH:
This release of QMP allows developers to develop applications on
platforms where MPICH are available. Current QMP implementation has
been tested on MPICH-chp4, MPICH-shmem and MPICH-gm.
QMP for single node:
This is a version which does not perform and communications and
can be compiled without MPI to run on a single node.
1) Source distribution:
*** very old and outdated ***
*** maybe we should just remove this ***
Source code of QMP is released as QMP_src.tar.gz containing the
following files:
AUTHORS ------- Authors and people responsible for QMP
COPYING ------- Copyright notice file
ChangeLog ------- Recent change log file
INSTALL ------- How to install QMP
README ------- This file
acinclude.m4 ------- autoconf related
aclocal.m4 ------- autoconf related
configure ------- autoconf generated configuration script
configure.ac ------- autoconf configuration
doc/Makefile.am ------- automake configuration for doc
doc/Makefile.in ------- automake generated Makefile template
doc/MessageAPI.htm ------- html file for QMP API spec
doc/QMP-1-0.doc ------- QMP API spec in MS word
doc/QMP_API.html ------- html API description for QMP/GM
doc/QMPdoxyfile.in ------- doxygen template file
src/Makefile.am ------- automake configuration for src
src/Makefile.in ------- automake generated makefile template
src/qmp.h ------- public header file to applications
src/QMP_P_GM.h ------- private header file for QMP over GM
implementation
src/QMP_P_MPI.h ------- private header file for QMP over mpich
implementation
src/QMP_init_gm.c ------- QMP initialization part
src/QMP_init_mpi.c ------- QMP initialization part for mpi
src/QMP_topology_gm.c ------- QMP topology routines
src/QMP_comm_gm.c ------- QMP communication routines
src/QMP_comm_mpi.c ------- QMP communication routines
src/QMP_util_gm.c ------- QMP implementation utilities
src/QMP_util_mpi.c ------- QMP implementation utilities
src/QMP_run ------- perl script to launch QMP gm jobs.
behaves similarly to the mpirun.
examples/Makefile.am ------- automake configuration file
examples/Makefile.in ------- automake generated makefile template
examples/QMP_perf.c ------- Simple QMP performance test between
two nodes.
examples/QMP_gcomm_perf.c ----- Simple QMP global communication
examples/QMP_qcd_test.c ------- Emulate a typical QCD communication
pattern
examples/gm_loop.c ------- Find out how a gm_receive loop
performs.
examples/QMP_MILS_test.c ------ Emulate very fast channel setup
and channel tear down.
2) Installation:
Read INSTALL file.
3) Using QMP:
a) QMP over mpich:
Users can use appropriate mpirun script to launch QMP jobs when
the applications using a QMP implementation over one of the mpich.
b) QMP for single node:
Just run it.
4) Bugs fix and changes:
*** This belongs in Changelog ***
Nov. 10, 2002 on GM implementation
Fix a bug reported from Carleton DeTar about setting up and tearing
down communication channels rapidly. Now user can create and destroy
channels as fast as they want, code will perform correctly but poorly.
Jan. 13, 2003 on GM implementation
Use a single port to transfer message as an implementation option.
Feb. 13, 2003
QMP.h is changed to qmp.h. User binary reduction function is redefined.
C++ header file is included in qmp.h.
Feb. 13, 2003 on MPI implentation
binaray reduction is implemented.
5) To do list:
*** I think this is fixed ***
QMP_declare_recv and QMP_declare_send may not work before a topology
is declared. But global communication works before the topology.
Please send bugs and comments to us (chen@jlab.org, watson@jlab.org,
edwards@jlab.org), and check out accompanying html documents for detailed
API descriptions.