drdarshan / winscalapack

Easy peasy distributed linear algebra on Windows using ScaLAPACK

Super-simple recipes for getting productive with ScaLAPACK on Windows

Be sure to check the samples out on MSDN!

About

I wrote these sample programs many years ago to help me benchmark different implementations of ScaLAPACK on supercomputers running Linux (vanilla Beowulf clusters as well as SGI Altices running MPT). Over time, this collection of hacked-together benchmarks evolved into a set of self-contained teaching samples and validation tests that I used to help folks in my team come up to speed with ScaLAPACK as well as to ensure that clusters and interconnects on our customers' site were property configured.

Last year over the Christmas break, I ported my samples to run on Windows HPC Server using MSMPI (the Microsoft implementation of the MPI standard). I also simplified and streamlined a lot of the code using a few handy features in the C++11 standard. My friends in the Microsoft HPC team then made the examples available on MSDN shortly afterwards.

Compiling the samples

Although ScaLAPACK is a Fortran 77 library, building and running the samples does not require you to know Fortran (you don't even need a Fortran compiler or to even know what Fortran is) - all you need is a decent C++ compiler, ScaLAPACK and MPI. If you're just starting out, I would suggest using Microsoft Visual Studio 2010, Intel MKL and Microsoft MPI respectively since they're the easiest to set up.

For detailed step-by-step instructions on setting up prerequisites, compiling the samples and running them on a HPC cluster, please refer to the document that accompanies the examples on MSDN.

License

The examples are released by Microsoft under the Apache license, version 2.0:

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.