Fedora Core 4: Performance Fix for LAM 7.1.1-6.FC4 Implementation Guide

LAM (Local Area Multicomputer) is an Message-Passing Interface (MPI)

programming environment and development system for heterogeneous

computers on a network. With LAM/MPI, a dedicated cluster or an

existing network computing infrastructure can act as one parallel

computer to solve one problem. LAM/MPI is considered to be "cluster

friendly" because it offers daemon-based process startup/control as

well as fast client-to-client message passing protocols. LAM/MPI can

use TCP/IP and/or shared memory for message passing (different RPMs

are supplied for this -- see the main LAM website at

for details).<

LAM features a full implementation of MPI version 1 (with the

exception that LAM does not support cancelling of sends), and much of

version 2. Compliant applications are source code portable between LAM

and any other implementation of MPI. In addition to meeting the

standard, LAM/MPI offers extensive monitoring capabilities to support

debugging. Monitoring happens on two levels: On one level, LAM/MPI has

the hooks to allow a snapshot of a process and message status to be

taken at any time during an application run. The status includes all

aspects of synchronization plus datatype map/signature, communicator

group membership and message contents (see the XMPI application on the

main LAM website). On the second level, the MPI library can produce a

cumulative record of communication, which can be visualized either at

runtime or post-mortem.

o Build shared libraries

o Enable use on x86_64 platform

- fix bug 161028

- build for FC4 updates

* Mon Jun 27 2005 Tom "spot" Callaway - 2:7.1.1-5

- enable shared libraries

- don't list /usr/share/* in files

* Sun May 22 2005 Jeremy Katz - 2:7.1.1-4

- use -fPIC on x86_64 (reported by spot to get things building for Extras)

cb43ec8de29511b21d765a23e82288f9 SRPMS/lam-7.1.1-6.FC4.src.rpm

b35d3b45ef94f33e3d32a053989c17b3 ppc/lam-7.1.1-6.FC4.ppc.rpm

e280bd64f730bb707ac4cb5f0cec65c9 ppc/debug/lam-debuginfo-7.1.1-6.FC4.ppc.rpm

389f577da739717d483af8427060f4e2 x86_64/lam-7.1.1-6.FC4.x86_64.rpm

d63d2f2385969db44fc975e93fbae54f x86_64/debug/lam-debuginfo-7.1.1-6.FC4.x86_64.rpm

58ece9de29ce1f2b71399af681ec99ad i386/lam-7.1.1-6.FC4.i386.rpm

885ac4ef907119e0e428ae617eaccae5 i386/debug/lam-debuginfo-7.1.1-6.FC4.i386.rpm

This update can also be installed with the Update Agent; you can

launch the Update Agent with the 'up2date' command.

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