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Posts by SunnyKona

1) Message boards : Number crunching : Possible Memory Leak with Nvidia GPU (Message 64456)
Posted 7 Apr 2016 by SunnyKona
My system:
Ubuntu 14.04 server running kernel 3.16.0-69
BOINC client version 7.2.42 for x86_64-pc-linux-gnu
OpenCL: NVIDIA GPU 0: GeForce GTX 560 Ti (driver version 361.42, device version OpenCL 1.1 CUDA, 1023MB, 990MB available, 1306 GFLOPS peak)

I've configured the project to only run GPU work units and have configured the client to not use more than 25% of RAM. The problem that I see on this system:

Every time a Work Unit is started, it uses up another 10M to 30M of RAM. I can monitor this by issuing a "free -h" command every time a work unit starts (a work unit only takes about 3 minutes to complete). This slowly fills up my RAM and after a couple hours the system has to start using swap space. I have tried to clear the ram by issuing a "echo 3 > /proc/sys/vm/drop_caches" at regular intervals, but this does not keep the RAM from getting completely filled by the work units. Once the RAM is filled, I have to reboot the server.

For the time being, I have switched to Einstein@home and my machine is humming along fine with no problems. Looks like a memory leak issue with the Milkyway@home work units (i.e. the work unit does not release all the RAM it used after it completes). Also annoying that the client doesn't seem to pay any attention to that 25% limitation.
2) Questions and Answers : Getting started : Computing Preferences (Message 64454)
Posted 5 Apr 2016 by SunnyKona
Think I figured it out ... you have to go to "Your Computers" and select "Details". In the Details menu, there is a place to set location down near the bottom of the menu.
3) Questions and Answers : Getting started : Computing Preferences (Message 64453)
Posted 5 Apr 2016 by SunnyKona
When setting up my account under "Computing Preferences" ( When and how BOINC uses your computer ) there are separate "Default, Home and Work" configurations. The Default appears to be applied to the computer I am using, but how do you go about assigning the Home or Work configuration to a computer. Seems like there should be somewhere that you select which configuration you want a computer to use. thanks

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