F@H: MemtestCL -- a GPU memory tester for OpenCL

[Stefan]

MemtestG80 and MemtestCL are software-based testers to test for "soft errors" in GPU memory or logic for NVIDIA CUDA-enabled GPUs (MemtestG80) or OpenCL-enabled CPUs and GPUs by any manufacturer, including both ATI and NVIDIA (MemtestCL). They use a variety of proven test patterns (some custom and some based on Memtest86) to verify the correct operation of GPU memory and logic. They are useful tools to ensure that given GPUs do not produce "silent errors" which may corrupt the results of a computation without triggering an overt error.