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User-level timers for MPI

Fab Tillier (Microsoft MPI) and I recently proposed a set of user-level timers for MPI.  The following slides are an [...]

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Lots coming up for MPI-3.0

The upcoming January 2012 MPI Forum meeting is the last meeting to get new material into the MPI-3.0 specification. Specifically, [...]

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Recently Voted into MPI-3

In the January MPI Forum meeting, several proposals passed their 2nd votes, meaning that they are “in” MPI-3.  That being [...]

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Gettings towards an MPI-3.0 draft

I’ve been a bit tardy with my blogging responsibilities of late; but only because I’ve been swamped with MPI stuff. [...]

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MPI-3.0: What’s the holdup?

A few people have asked me questions about MPI-3 recently, such as: What took so long? Why isn’t another draft [...]

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MPI-3.0 Draft 2 public comment period

Dear MPI user, The MPI-Forum is about to ratify the MPI-3.0, a new version of the MPI standard.  As part [...]

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MPI-3.0 has passed!

We’re here at the MPI Forum in Vienna where the Forum has just unanimously voted to accept the MPI-3.0 document . Woo hoo!! This document caps a [...]

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The MPI C++ bindings: what happened, and why?

Jeff Hammond at Argonne  tells me that there’s some confusion in the user community about MPI and C++. Let me see if I can [...]

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The MPI C++ bindings are gone: what does it mean to you?

Jeff Hammond at Argonne tells me that there’s some confusion in the user community about MPI and C++.  I explained how/why we got here [...]

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MPI Forum: What’s Next?

Now that we’re just starting into the MPI-3.0 era , what’s next? The MPI Forum is still having active meetings.  What is [...]

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Open MPI 1.7.5 released

After a metric ton of work by the entire community, Open MPI has released version 1.7.5. Among the zillions of [...]

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Can I MPI_SEND (and MPI_RECV) with a count larger than 2 billion?

This question is inspired by the fact that the “count” parameter to MPI_SEND and MPI_RECV (and friends) is an “int” [...]

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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...

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