Re: [OMPI users] MPI_Wtime not working with -mno-sse flag

2014-11-10 Thread Alex A. Granovsky
Hello, use RDTSC (or RDTSCP) to read TSC directly Kind regards, Alex Granovsky -Original Message- From: maxinator333 Sent: Monday, November 10, 2014 4:35 PM To: us...@open-mpi.org Subject: [OMPI users] MPI_Wtime not working with -mno-sse flag Hello again, I have a piece of code, w

Re: [OMPI users] MPI_Wtime not working with -mno-sse flag

2014-11-10 Thread Jeff Squyres (jsquyres)
On some platforms, the MPI_Wtime function essentially uses gettimeofday() under the covers. See this stackoverflow question about -mno-sse: http://stackoverflow.com/questions/3687845/error-with-mno-sse-flag-and-gettimeofday-in-c On Nov 10, 2014, at 8:35 AM, maxinator333 wrote: > Hello