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. -- cyg Simple -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
