HPX-5 is the High Performance ParalleX runtime library developed at CREST at Indiana University. This open source, portable, and performance-oriented implementation is guided by the ParalleX execution model. It provides a programming model for parallel and distributed applications, allowing programs to run unmodified on systems from a single SMP to large clusters or supercomputers with thousands of nodes. HPX-5 supports Linux running on Intel x86 and Xeon Phi processors and various ARM platforms. We use HPX-5 for a broad range of scientific applications enabling scientists write code that performs and scales better than contemporary parallel runtimes.

HPX–5 supports both SMP and networked configurations using the Photon networking library. MPI support is included for legacy applications and portability.

In order to get started with HPX~5, you first need to know some basic information and how to go about using it. This document discusses how to get up and running quickly with the HPX–5 Runtime System. Everything from unpacking and compilation of the distribution to execution of some tools.

HPX-5 is tested on Linux on x86_64, Xeon Phi, ARMv7 and AArch64 (ARMv8). Experimental support is available for SMP execution on Darwin on x86_64.

The following tools have been verified to work with HPX-5.

• GCC 4.8.4 or newer (Tested with 4.8.4, 4.9.1, 4.9.2, 5.1.0, 5.2.0).
• clang Tested with 3.6 (3.5 and earlier are known to be broken).
• icc (Tested with 15.0.1).
• GNU Make 3.81+

HPX-5 relies on standard autotools infrastructure for configuration and building. Basic details can be found in the INSTALL file, while advanced instructions are available on the website.

$ ./configure --prefix=/path-to-install --enable-mpi --enable-photon
$ make
$ make install
$ export PKG_CONFIG_PATH=/path-to-install/lib/pkgconfig:$PKG_CONFIG_PATH
$ export LD_LIBRARY_PATH=/path-to-install/lib:$LD_LIBRARY_PATH

HPX–5 provides runtime options that can be specified on the command line or in the environment. The list of options can be obtained from any HPX–5 program by adding --hpx-help option.

HPX–5 programs can be run using any of the MPI or PMI launchers such as mpirun or mpiexec. E.g. to run the pingpong example,

$ mpirun -np 2 examples/pingpong 10 -m -v

Detailed build instructions can be found in the User's Guide to HPX–5 found at https://hpx.crest.iu.edu/documentation and FAQs in (https://hpx.crest.iu.edu/faqs_and_tutorials).