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GLOBAL ARRAYS LIBRARY
~~~~~~~~~~~~~~~~~~~~~
DEPENDENCIES ON OTHER SOFTWARE
==============================
- ARMCI - one-sided communication library used by GA as its run-time system
This s/w is new in release 3.0
- MPI or TCGMSG: more or less extensive run-time support is required. For
example, a message-passing library is used on some platforms to
fork processes, implement broadcast, ga_dgop;
- MA (memory allocator by Greg Thomas)
- GA eigensolver, ga_diag, is a wrapper for the eigensolver from
PEIGS library; (Please contact George Fann <fanngi@ornl.gov> about
PEIGS)
- BLAS library is required for the eigensolver and ga_dgemm;
- LAPACK library is required for the eigensolver;
- MPI, SCALAPACK, PBBLAS, and BLACS libraries are required for
ga_lu_solve, ga_cholesky, ga_llt_solve, ga_spd_invert, ga_solve. If
you do not install these libs, the named operations will not be
available.
BUILDING GA
===========
Please refer to the README in the base distribution directory.
TEST PROGRAMS
=============
Please refer to the README in the base distribution directory for details on
running the GA test suite.
TEST PROGRAM NOTES
==================
- Program testspd.x should work only with the ScaLAPACK and MPI.
- Another example program that uses GA is called jacobi.x. The Jacobi
iterative method is used to solve a system of linear equations
generated in the solution process of a partial differential
equation by the finite differences method.
- To run test programs with TCGMSG that creates the GA processes on
the shared memory and (network of) workstations; execute them you
should use 'parallel' program -- built in tcgmsg/ipcv4.0::
parallel testing/test.x
For a single processor execution 'parallel' is not required and the
program can be run as::
testing/test.x
or under control of your favorite debugger.
DOCUMENTATION
=============
The documentation is located in doc/ and on the web at:
https://hpc.pnl.gov/globalarrays
CONTACT
=======
For suggestions, comments and bug reports: https://github.com/GlobalArrays/ga/issues
|
