Readme and Release notes for release 2.3.0.3 Parallel Environment Runtime Edition 2.3.0.3 PERTE-2.3.0.3-powerLE-Linux-redhat Readme

Readme file for:PERTE-2.3.0.3-powerLE-Linux-redhat
Product/Component Release:2.3.0.3
Update Name:PERTE-2.3.0.3-powerLE-Linux-redhat
Fix ID:PERTE-2.3.0.3-powerLE-Linux-redhat
Publication Date:29 April 2016
Last modified date:29 April 2016

Online version of the readme file:http://www-01.ibm.com/support/docview.wss?rs=0&uid=isg400002637
Important: The most current version of the readme file can always be found online.

Contents

Download location
Prerequisites and co-requisites
Known issues

Installation information

Additional information
Copyright and trademark information

Download location

Below is a list of components, platforms, and file names that apply to this Readme file.

Fix Download for Linux

Product/Component Name:	Platform:	Fix:
Parallel Environment Runtime Edition	Linux PPC64LE RHEL 7	PERTE-2.3.0.3-powerLE-Linux-redhat

Prerequisites and co-requisites

None

Known issues

Known Issues
1. cudaMemcpy error with MPI_Reduce_Scatter when CUDA aware support is enabled.
  
  An issue has been identified in the MPI_Reduce_scatter collective call when using GPU buffers and enabling IBM Parallel Environment Runtime CUDA aware support. If the receive buffer is in GPU memory and is a different size than the send buffer, a cudaMemcpy error may occur. This error will cause an MPI_Abort and will terminate the application.
  
  The application may see messages similar to:
  
  Error: cudaMemcpy failed dst: 0x10023360020XXXXXXX src: 0x4203fe0000 count: 524288 Abort(1) on node 0: Error: cudaMemcpy failed
  
  As a workaound, users may:
  - Disable CUDA aware support by setting MP_CUDA_AWARE=no. Applications must then manually copy the contents of GPU buffers to local host buffers before invoking any MPI call.
    
    or
  - Ensure the send and receive buffers passed to MPI_Reduce_scatter are the same size.
  This issue will be fixed in a future service level update. Refer to APAR IV79850.

Installation information

Installation Notes
Please refer to the "IBM Parallel Environment Runtime Edition Installation" document for details.
1. If you are installing IBM Parallel Environment (IBM PE) Runtime Edition for Linux for the FIRST time, you will get the complete product by installing this service image.
  
  You will need to copy the IBM PE Runtime Edition for Linux electronic license package image from the version 2.3.0.0 CD and install it separately before installing the other package images from this service image.
2. Download the IBM PE Runtime for Linux service image into any directory on your system.
3. Unzip and extract the package images from the *.tar.gz file.
4. Install the package images on your system using the rpm -i command. Refer to the "IBM Parallel Environment Runtime Edition Installation" document for detailed information on upgrading IBM PE Runtime Edition for Linux.
5. IBM PE Runtime for Linux supports the concurrent installation of multiple versions of the product. If this service image is installed where a previous version is already installed, this service image may not be the active version when the installation is complete. In order to deploy this version as the active version, you must run the command pelinks 2303 following the successful installation of this service image.

Additional information

Description
This service image contains the package images for the IBM Parallel Environment (IBM PE) Runtime Edition for Linux V2.3.0.3 (PERTE2303). This file contains information about the service image; for detailed information about this release please refer to the /opt/ibmhpc/pe2303/ppe.poe/READMES/poe.linux.README file or to the IBM PE Runtime Edition Installation document.

IBM PERTE2303 supports:
- IBM POWER8 systems in little-endian mode with Redhat Enterprise Linux 7.2 for IBM Power
This release rolls up all fixes that have gone into previous IBM PE Runtime Edition releases.

The IBM PE Runtime Edition 2.3.0.3 components are:
- IBM PE Runtime Edition for Linux V2.3.0.3
This media also contains:

IBM PE Runtime Edition README file:
poe.linux.README

IBM PE Runtime Edition man page packages

IBM PE Runtime Edition samples packages

xCAT complete kit for IBM PE Runtime Edition

About IBM PERTE 23 electronic license package:
This service image does not contain an IBM PE Runtime Edition electronic license package image.

The electronic license package image is available from the IBM PE Runtime Edition 2.3.0.0 CD.

You need to install the IBM PE Runtime Edition license package image and run the license acceptance script if you are installing IBM PE Runtime Edition for the first time.

See the IBM PE Runtime Edition Installation document for detailed information.

Package contents

poe.linux.README

IBM PE Runtime package images:
ppe-rte-2303-2.3.0.3-s003a.ppc64el.rpm
pperte-2.3.0.3-s003a.ppc64el.rpm
ppe-rte-man-2303-2.3.0.3-s003a.ppc64el.rpm
pperteman-2.3.0.3-s003a.ppc64el.rpm
ppe-rte-samples-2303-2.3.0.3-s003a.ppc64el.rpm
ppertesamples-2.3.0.3-s003a.ppc64el.rpm

xCAT complete kit for IBM PE Runtime:
pperte-2.3.0.3-s003a-ppc64el.tar.bz2

Changelog
History of problems fixed

IBM PE_RTE 2.3.0.3 [April 29, 2016]

MPI:
1. None.
MPICH:
1. None.
PAMI:
1. General fixes
PDB:
1. None.
POE:
1. General fixes
IBM PE_RTE 2.3.0.2 [December 23, 2015]

MPI:
1. None.
MPICH:
1. General fixes
PAMI:
1. Enable IBM PE Runtime CUDA-aware support.
2. General fixes
PDB:
1. None.
POE:
1. General fixes
IBM PE_RTE 2.3.0.1 [December 14, 2015]

MPI:
1. None.
MPICH:
1. None.
PAMI:
1. Rollup of fixes for PE RTE 2.3.0.0 GA.
PDB:
1. None.
POE:
1. Rollup of fixes for PE RTE 2.3.0.0 GA.

Copyright and trademark information

http://www.ibm.com/legal/copytrade.shtml

Notices

INTERNATIONAL BUSINESS MACHINES CORPORATION PROVIDES THIS PUBLICATION "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some jurisdictions do not allow disclaimer of express or implied warranties in certain transactions, therefore, this statement may not apply to you.

This information could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in new editions of the publication. IBM may make improvements and/or changes in the product(s) and/or the program(s) described in this publication at any time without notice.

Microsoft, Windows, and Windows Server are trademarks of Microsoft Corporation in the United States, other countries, or both.

Intel, Intel logo, Intel Inside, Intel Inside logo, Intel Centrino, Intel Centrino logo, Celeron, Intel Xeon, Intel SpeedStep, Itanium, and Pentium are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries.

Other company, product, or service names may be trademarks or service marks of others.

THIRD-PARTY LICENSE TERMS AND CONDITIONS, NOTICES AND INFORMATION

The license agreement for this product refers you to this file for details concerning terms and conditions applicable to third party software code included in this product, and for certain notices and other information IBM must provide to you under its license to certain software code. The relevant terms and conditions, notices and other information are provided or referenced below. Please note that any non-English version of the licenses below is unofficial and is provided to you for your convenience only. The English version of the licenses below, provided as part of the English version of this file, is the official version.

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