Re: [OMPI users] OMPI CUDA IPC synchronisation/fail-silent problem

2014-08-26 Thread Rolf vandeVaart
...@open-mpi.org Subject: [OMPI users] OMPI CUDA IPC synchronisation/fail-silent problem Hey all, to test the performance of my application I duplicated the call to the function that will issue the computation on two GPUs 5 times. During the 4th and 5th run of the algorithm, however, the algorithm

[OMPI users] OMPI CUDA IPC synchronisation/fail-silent problem

2014-08-26 Thread Christoph Winter
Hey all, to test the performance of my application I duplicated the call to the function that will issue the computation on two GPUs 5 times. During the 4th and 5th run of the algorithm, however, the algorithm yields different results (9 instead of 20): # datatype: double # datapoints: 2 # ma