Cisco Blogs

Cisco Blog > High Performance Computing Networking

Crazy ideas to revamp MPI_INIT and MPI_FINALIZE

I recently had the pleasure of attending EuroMPI 2015, hosted by INRIA in Bordeaux, France (…hey, you should attend EuroMPI 2016 in Edinburgh, Scottland!).

I gave two mini-talks during my speaking slot, the first of which was entitled: Crazy ideas about revamping MPI_INIT and MPI_FINALIZE.

Read More »

Tags: , , ,

New life for C++ in MPI

I recently received an interesting email from Heiko Bauke about a new C++-based message-passing library that he is working on called MPL.

His library aims to make a simple-to-use library that exploits the features available in modern C++ compliers — it’s not a simple 1:1 mapping of C-to-C++ bindings like the MPI 2.x C++ bindings were.

Read More »

Tags: ,

MPI-3.1 books now available in hardcover

MPI-3.1 hardcover bookSimilar to previous versions of the standard, the MPI-3.1 standard is now available in hardcover.

Even though I have a copy of the MPI-3.1 PDF for quick/easy reference on my laptop, I find something intangibly inherently useful (and comforting?) in having a paper copy of the standard to thumb through.

The books have been (literally) spanning the color spectrum:

  • MPI 2.1: hardcover was yellow
  • MPI 2.2: hardcover was orange
  • MPI 3.0: hardcover was green
  • MPI 3.1: hardcover is blue

Read More »

Tags: ,

Libfabric paper at IEEE Hot Interconnects

Later today, Sean Hefty will present a paper about the OpenFabrics Interfaces (a.k.a. “libfabric“) at the 2015 IEEE Hot Interconnects conference.

Libfabric is the next-generation Linux library being developed by an open source consortium of vendors and academic researchers that implements the OpenFabrics Interfaces, specifically designed to expose application-focused networking functionality to high performance applications (e.g., MPI, PGAS, SHMEM, datacenter applications, etc.).

I’ve described libfabric in a few prior blog entires, and how we actively support Cisco usNIC functionality in libfabric.

Read More »

Tags: , ,

MPI outside of C and Fortran (part 2)

In my previous blog entry, I answered a user question about how MPI defines its global constants, specifically in the context of interactions with other languages.

I went beyond that answer, and also explained why MPI does not define an ABI.

In this entry, I’ll go into the “how does MPI interact with other languages?” part of the question.

Read More »

Tags: ,