I was trying out the staging option in checkpoint where I save the checkpoint image in local file system and have the image transferred to global filesystem in the background. As part of the background process I see that the “scp” command is launched to transfer the images from local file system to global file system. I am using openmpi-1.5rc6 with BLCR 0.8.2.


In my experiment, I had about 128 cores saved their respective checkpoint images on local file system. During the background process, I see that only 10 “scp” requests are sent at a time. Is this a configurable parameter? Since these commands will run on respective nodes, how can I launch all 128 scp requests (to take care of all 128 images in my experiment) simultaneously?




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