Hi all,
I'm testing pmemd.cuda on a GTX480 with a moderately sized system in
explicit solvent (~60k atoms). Every once in a while, a run is
interrupted by this error message:
"Error: the launch timed out and was terminated launching kernel
kPMEGetGridWeights". No other error messages are generated.
The same system and input files are used by the cpu version with no
issues. The process doesn't seem to be running out of memory, and no
hardware issue appears to be involved.
Below is the deviceQuery output.
Thanks for any suggestions
Sasha
[sasha.redwood release]$ ./deviceQuery
./deviceQuery Starting...
CUDA Device Query (Runtime API) version (CUDART static linking)
There is 1 device supporting CUDA
Device 0: "GeForce GTX 280"
CUDA Driver Version: 3.0
CUDA Runtime Version: 3.0
CUDA Capability Major revision number: 1
CUDA Capability Minor revision number: 3
Total amount of global memory: 1073020928 bytes
Number of multiprocessors: 30
Number of cores: 240
Total amount of constant memory: 65536 bytes
Total amount of shared memory per block: 16384 bytes
Total number of registers available per block: 16384
Warp size: 32
Maximum number of threads per block: 512
Maximum sizes of each dimension of a block: 512 x 512 x 64
Maximum sizes of each dimension of a grid: 65535 x 65535 x 1
Maximum memory pitch: 2147483647 bytes
Texture alignment: 256 bytes
Clock rate: 1.30 GHz
Concurrent copy and execution: Yes
Run time limit on kernels: Yes
Integrated: No
Support host page-locked memory mapping: Yes
Compute mode: Default (multiple host
threads can use this device simultaneously)
deviceQuery, CUDA Driver = CUDART, CUDA Driver Version = 4243455, CUDA
Runtime Version = 3.0, NumDevs = 1, Device = GeForce GTX 280
PASSED
Press <Enter> to Quit...
-----------------------------------------------------------
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Received on Tue Jun 08 2010 - 10:00:06 PDT
