Re: [OMPI users] High CPU usage with yield_when_idle =1 on CFS

On 8/31/2011 11:48 PM, Randolph Pullen wrote: I recall a discussion some time ago about yield, the Completely F%’d Scheduler (CFS) and OpenMPI. My system is currently suffering from massive CPU use while busy waiting. This gets worse as I try to bump up user concurrency. Yup. I am running w

Re: [OMPI users] Mingw - Gfortran - Cmake : 'gettimeofday'

Hi, Thanks for your answers. - I encountered some errors with MinGW makefiles on "trunk". - So, I dived into VS_Express_2010 makefiles and only specified Mingw/gfortran as compiler. (I'm not sure : should I choose CMAKE_Fortran_COMPILER:FILEPATH=C:/MinGW/bin/gfortran.exe or mingw32-gfortran.exe

Re: [OMPI users] Question regarding SELF-checkpointing

Hi, My version of OpenMPI is 1.5.3.I have attached a simple toy code. Which is actually modification of example given on the web http://osl.iu.edu/research/ft/ompi-cr/examples.php .Mainly, i introduced some communication between processes and every process writes its separate checkpoint fi

[OMPI users] High CPU usage with yield_when_idle =1 on CFS

I recall a discussion some time ago about yield, the Completely F%’d Scheduler (CFS) and OpenMPI. My system is currently suffering from massive CPU use while busy waiting.  This gets worse as I try to bump up user concurrency. I am running with yield_when_idle but its not enough. Is there anyth