Re: OpenMPI Problem
- Date: Sun, 18 Dec 2016 12:52:03 -0500
- From: cyg Simple <cygsimple@xxxxxxxxx>
- Subject: Re: OpenMPI Problem
On 12/18/2016 9:55 AM, Bahadır Öncel wrote:
> Hello all!
> I've installed cygwin and openmpi successfully. I can compile and run
> mpi programs. Twist is, even the openmpi test program hello_c.c approx
> takes a minute to run. When I try in my virtual machine (linux) the
> same program takes less than a second to run.
> I've found that other users asked the same question but did not find
> any solution.
Windows itself is inherently slow. Adding in the emulation layer slows
it even more. So if you want to port the compiler to Windows native you
may find a bit faster execution but that may be debatable.
> Problem reports: http://cygwin.com/problems.html
Use the above when reporting issues, even in a question.
> FAQ: http://cygwin.com/faq/
Since speed of execution is a frequently asked question, you might find
some tidbits in the FAQ.
And don't forget about BLODA issues.
Problem reports: http://cygwin.com/problems.html
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