We we have a Tesla C2070 running on a Fedora 13
installed with the recent Nvidia drivers 3.2 (260.19.14).
When I run “devicequery”, I get the following info:
There is 1 device supporting CUDA
Device 0: “Tesla C2070”
CUDA Driver Version: 3.20
CUDA Runtime Version: 3.20
CUDA Capability Major revision number: 2
CUDA Capability Minor revision number: 0
Total amount of global memory: 1341587456 bytes
Number of multiprocessors: 14
Number of cores: 112
Total amount of constant memory: 65536 bytes
Total amount of shared memory per block: 49152 bytes
Total number of registers available per block: 32768
Warp size: 32
Maximum number of threads per block: 1024
Maximum sizes of each dimension of a block: 1024 x 1024 x 64
Maximum sizes of each dimension of a grid: 65535 x 65535 x 1
Maximum memory pitch: 2147483647 bytes
Texture alignment: 512 bytes
Clock rate: 1.15 GHz
Concurrent copy and execution: Yes
Run time limit on kernels: No
Support host page-locked memory mapping: Yes
Compute mode: Default (multiple host threads can use this device simultaneously)
To my great surprise, there is only 114 cores detected,
instead of the 448 I expected.
The Total amount of global memory is also much less than the 6G expected.
Its more or less like only 1/4 of the multiprocessors are detected.
How can I understand this ?