ping pong in UPC

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From: Jose Vicente Espi (jvespi_at_gmail_dot_com)
Date: Thu Jul 23 2009 - 12:54:58 PDT

  • Next message: sainath l: "Re: Defining block size during runtime" 
    Hello,

I'm testing performance of UPC communications in an UDP network, 
comparing it with MPI ping pong bandwith/latency test. But  I didn't get 
the results that I expected, based in the tests made in 
http://gasnet.cs.berkeley.edu/performance/.

I'm probably doing something wrong, functions used for transferring data 
are upc_memput and upc_memget. Only with message sizes smaller than 512 
bytes I get a little better performance than MPI. For larger message 
sizes performance become worse.

Have you got an example of code for measuring performance of UPC vs MPI  
in ping pong bandwith test?

Thanks in advance.

Jose Vicente.
  • Next message: sainath l: "Re: Defining block size during runtime"
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