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This file is provided under a dual BSD/GPLv2 license. When using or redistributing this file, you may do so under either license. GPL LICENSE SUMMARY Copyright(c) 2017 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms of version 2 of the GNU General Public License as published by the Free Software Foundation. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. Contact Information: Intel Corporation, www.intel.com BSD LICENSE Copyright(c) 2017 Intel Corporation. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of Intel Corporation nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Copyright (c) 2003-2017 Intel Corporation. All rights reserved. ================================================================================ ABSTRACT -------- Discusses how to build, install and test the PSM2 library source code. Contains the following sections: - INTRODUCTION - DEPENDENCIES - BUILDING * BUILDING USING MAKEFILE * BUILDING USING RPMBUILD (CREATING SOURCE AND BINARY RPM'S) - INSTALLING * INSTALLING USING MAKEFILE * INSTALLING USING EITHER YUM OR DNF - TESTING - RELATED SOFTWARE TO PSM2 - SUPPORTING DOCUMENTATION INTRODUCTION ============ This README file discusses how to build, install and test the PSM2 library source code. The PSM2 library supports a number of fabric media and stacks, and all of them run on version 7.X of Red Hat Enterprise Linux (abbreviated: RHEL), and SuSE SLES. Only the x86_64 architecture is supported. Building PSM2 is possible on RHEL 7.2+ as it ships with hfi1 kernel driver. For older RHEL 7.x versions and SuSE SLES, OPA is not natively supported in the kernel and therefore, building PSM2 is not possible unless you have the correct kernel-devel package or use latest versions of IFS. There are two mechanisms for building and installing the PSM2 library: 1. Use provided Makefiles to build and install or 2. Generate the *.rpm files which you can then install using either yum or dnf command DEPENDENCIES ============ The following packages are required to build the PSM2 library source code: (all packages are for the x86_64 architecture) compat-rdma-devel gcc-4.8.2 glibc-devel glibc-headers kernel-headers Additional packages for GPU Direct support include: NVIDIA CUDA toolkit 8.0 or greater. Older versions are not supported. In addition to depending on these packages, root privileges are required to install the runtime libraries and development header files into standard system location. BUILDING ======== The instructions below use $BASENAME, $PRODUCT and $RELEASE to refer to the base name of the tarball, RPM that will be generated and the product and release identifiers of the RPM. The base name of the RPM changes depending on which version/branch of code you derive the tar file from. Up until v10.2 of PSM2, the base name for the RPM is hfi1-psm. From v10.2 onwards, the base name will be libpsm2. The internal library remains unchanged and is still libpsm2.so.2. BUILDING USING MAKEFILES ------------------------ 1. Untar the tarball: $ tar zxvf $BASENAME-$PRODUCT-$RELEASE.tar.gz 2. Change directory into the untarred location: $ cd $BASENAME-$PRODUCT-$RELEASE 3. Build: 3.1. To build with GNU C (gcc), run make on the command line: $ make - or - $ make CCARCH=gcc 3.2 To build with Intel C (icc), specify the correct CCARCH: $ make CCARCH=icc 3.3. To build with CUDA support, specify PSM_CUDA=1 on the command line along with the desired compiler: $ make PSM_CUDA=1 CCARCH=gcc - or - $ make PSM_CUDA=1 CCARCH=icc BUILDING USING RPMBUILD ----------------------- 1. Run this command from your $PWD to generate rpm, srpm files $ ./makesrpm.sh a This command results in the following collection of rpm's and source code rpm's under your $PWD/temp.X/ directory. ("X" is the pid of the bash script that created the srpm and rpm files) (Result shown here for RHEL systems.) RPMS/x86_64/libpsm2-compat-10.3.7-1x86_64.rpm RPMS/x86_64/libpsm2-devel-10.3.7-1x86_64.rpm RPMS/x86_64/libpsm2-10.3.7-1x86_64.rpm RPMS/x86_64/libpsm2-debuginfo-10.3.7-1x86_64.rpm SRPMS/libpsm2-10.3.7-1.src.rpm 1.1. Optionally for GPU Direct support run this command from your $PWD to generate rpm, srpm files $ ./makesrpm.sh a -cuda This command results in the following collection of rpm's and source code rpm's under your $PWD/temp.X/ directory. ("X" is the pid of the bash script that created the srpm and rpm files): RPMS/x86_64/libpsm2-10.3.7-1cuda.x86_64.rpm RPMS/x86_64/libpsm2-compat-10.3.7-1cuda.x86_64.rpm RPMS/x86_64/libpsm2-devel-10.3.7-1cuda.x86_64.rpm SRPMS/x86_64/libpsm2-10.3.7-1cuda.src.rpm On systems with SLES 12.3 or newer, the package name for the base libpsm2 RPM will be: libpsm2-2-10.3.7-1.x86_64.rpm Other supporting RPM package names will be as listed above. 2. To build rpm files from the srpm file with Intel C (icc), specify the correct CCARCH in the rpmbuild environment: $ env CCARCH=icc rpmbuild --rebuild SRPMS/libpsm2-10.3.7-1.src.rpm INSTALLING ========== INSTALLING USING MAKEFILE ------------------------- Install the libraries and header files on the system (as root): $ make install The libraries will be installed in /usr/lib64, and the header files will be installed in /usr/include. This behavior can be altered by using the "DESTDIR" and "LIBDIR" variables on the "make install" command line. "DESTDIR" will add a leading path component to the overall install path and "LIBDIR" will change the path where libraries will be installed. For example, "make DESTDIR=/tmp/psm-install install" will install all files (libraries and headers) into "/tmp/psm-install/usr/...", "make DESTDIR=/tmp/psm-install LIBDIR=/libraries install" will install the libraries in "/tmp/psm-install/libraries" and the headers in "/tmp/psm-install/usr/include", and "make LIBDIR=/tmp/libs install" will install the libraries in "/tmp/libs" and the headers in "/usr/include". INSTALLING USING EITHER YUM OR DNF ---------------------------------- You can install the rpm's and source rpm's previously built using rpmbuild using either the yum or dnf command as the root user. See the appropriate man page for details of installing rpm's. Note: It is also possible to use rpm command to install rpm's, but it is recommended that one use yum/dnf as rpm tool has issues with name changes and obsoletes tags. yum or dnf should be better able to resolve dependency issues. RELATED SOFTWARE TO PSM2 ======================== MPI Libraries supported ----------------------- A large number of open source (Open MPI, MVAPICH2) and Vendor MPI implementations support PSM2 for optimized communication on HCAs. Vendor MPI implementations (HP-MPI, Intel MPI 4.0 with PMI, Platform/Scali MPI) require that the PSM2 runtime libraries be installed and available on each node. Usually a configuration file or a command line switch to mpirun needs to be specified to utilize the PSM2 transport. Open MPI support --------------- If using a version of Open MPI that is not packaged within IFS release, it is required to use at least v1.10.4. Older versions are not supported. Since v1.10.4 is not in active development, it is further recommended to use upstream versions v2.1.2 or newer. If NVIDIA* CUDA* support is desired, you can use Open MPI built with CUDA* support provided by Intel in the IFS installer 10.4 or newer. This Open MPI build is identified with the "-cuda-hfi" tag to the Open MPI base version name. The NVIDIA* CUDA* support changes have also been accepted into v2.1.3, v3.0.1 and v3.1.0 branches of upstream Open MPI repository. PSM2 header and runtime files need to be installed on a node where the Open MPI build is performed. All compute nodes additionally should have the PSM2 runtime libraries available on them. Open MPI provides a standard configure, make and make install mechanism which will detect and build the relevant PSM2 network modules for Open MPI once the header and runtime files are detected. MVAPICH2 support ---------------- MVAPICH2 supports PSM2 transport for optimized communication on HFI hardware. OPA IFS supports MVAPICH2 v2.1 (or later). PSM2 header and runtime files need to be installed on a node where MVAPICH2 builds are performed. All compute nodes should also have the PSM2 runtime libraries available on them. For building and installing MVAPICH2 with OPA support, refer to MVAPICH2 user guides here: http://mvapich.cse.ohio-state.edu/userguide/ (Note: Support for PSM2 is included in v2.2 and newer) OFED Support ------------ Intel OPA is not yet included within OFED. But the hfi1 driver is available publicly at kernel.org. SUPPORTING DOCUMENTATION ------------------------ PSM2 Programmer's Guide is published along with documentation for "Intel® Omni-Path Host Fabric Interface PCIe Adapter 100 Series" (https://www.intel.com/content/www/us/en/support/articles/000016242/network-and-i-o/fabric-products.html) Refer to this document for description on APIs and environment variables that are available for use. For sample code on writing applications leveraging the PSM2 APIs, refer to Section 5. PSM Compatibility Support ------------ libpsm2-compat suppports applications that use the PSM API instead of the PSM2 API, through a compatibility library. This library is an interface between PSM applications and the PSM2 API. If the system has an application that is coded to use PSM and has requirements to use PSM2 (i.e. the host has Omni-Path hardware), the compatibility library must be used. Please refer to your operating system's documentation to find how to modify the order in which system directories are searched for dynamic libraries. The libpsm2-compat version of libpsm_infinipath.so.1 must be earlier on the search path than that of libpsm-infinipath. Doing so allows applications coded to PSM to transparently use the PSM2 API and devices which require it. Please note that the installation path for the libpsm2-compat version of libpsm_infinipath.so.1 will differ depending on your operating system specifics. Common locations include: - /usr/lib64/psm2-compat/ - /usr/lib/psm2-compat/
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