openmpi

Edgar Gabriel 0684002812 fixes: 1127

fix some of the multi-threading problems for the cid allocation. Two bugs
specifically:
 - since we do not have a queue for incoming fragments of unknown cid, we need
 to synchronize all processes before exiting the communicator creation. This
 synchronization was/is located in comm_activate, which was however too late
 for the multi-threaded case. Thus, for multi-threaded scenarios we are now
 synchronizing 'before' we allow another thread to enter the cid-allocation
 loop.

- for synchronization, we used for the sake of simplicity allreduce
  operations. It turns out, that these operations interefered with the
 allreductions in the cid-allocation routine, which lead to non-sense results
  in the cid-allocation and potentially to endless loops.

Multi-threaded communicator creation seems to work now, is however still 'very
very' slow. I think, the busy wait of threads is killing the performance of
the active threads in the cid allocation. But this is another topic.

This commit was SVN r15910.

2007-08-17 16:15:26 +00:00

attribute

Make it so the universe size is passed through the ODLS instead of through a gpr trigger during MPI init. This matches what is currently being done with the app number.

2007-07-02 01:33:35 +00:00

class

This commit brings in two major things:

2007-07-18 01:15:59 +00:00

communicator

fixes: 1127

2007-08-17 16:15:26 +00:00

datatype

Remove unused variable.

2007-07-30 19:38:26 +00:00

debuggers

Remove all output. This final commit should solve all [hopefully]

2007-08-17 02:35:14 +00:00

errhandler

- add missing va_end found by coverity

2007-07-30 16:08:18 +00:00

etc

Next step in the project split, mainly source code re-arranging

2006-02-12 01:33:29 +00:00

file

Even less warnings.

2007-02-01 19:27:11 +00:00

group

Fix to the invalid process lookup cause by group_intersection

2007-08-16 17:01:01 +00:00

include

Make it so the universe size is passed through the ODLS instead of through a gpr trigger during MPI init. This matches what is currently being done with the app number.

2007-07-02 01:33:35 +00:00

info

- fix typo

2007-07-30 15:47:37 +00:00

mca

The reference implementation of Portals (which runs over TCP on Linux) is

2007-08-17 03:56:49 +00:00

mpi

removing unused variables, that cause warnings..

2007-08-07 15:13:46 +00:00

- Support for opt. MPI_REAL2 (who has that?)

2007-06-19 05:03:11 +00:00

peruse

OS X apparently really doesn't like shared libraries with unresolvable

2007-06-05 03:03:59 +00:00

proc

Change requested by Ralph -- Remove the dependency on GPR triggers for filling

2007-08-09 18:53:28 +00:00

request

- UNexport symbols that shouldn't be needed outside the libraries

2007-05-16 15:46:52 +00:00

runtime

Change requested by Ralph -- Remove the dependency on GPR triggers for filling

2007-08-09 18:53:28 +00:00

tools

Merging in the Sparse Groups..

2007-08-04 00:41:26 +00:00

win

Last set of explicit conversions. We are now close to the zero warnings on

2006-10-20 03:57:44 +00:00

Makefile.am

Allow OMPI components to modify the link options for libmpi.so. This

2007-08-17 03:52:53 +00:00

README.dox

Update the copyright notices for IU and UTK.

2005-11-05 19:57:48 +00:00

README.dox

/*
 * Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
 *                         University Research and Technology
 *                         Corporation.  All rights reserved.
 * Copyright (c) 2004-2005 The University of Tennessee and The University
 *                         of Tennessee Research Foundation.  All rights
 *                         reserved.
 * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
 *                         University of Stuttgart.  All rights reserved.
 * Copyright (c) 2004-2005 The Regents of the University of California.
 *                         All rights reserved.
 * $COPYRIGHT$
 * 
 * Additional copyrights may follow
 * 
 * $HEADER$
 */
/** @mainpage

@section mainpage_introduction Introduction

This is the introduction.
This is the introduction.
This is the introduction.
This is the introduction.
This is the introduction.
This is the introduction.
This is the introduction.

@section main_install Installation
 
This is the installation section.
This is the installation section.
This is the installation section.
This is the installation section.
This is the installation section.
This is the installation section.
This is the installation section.

*/