20131002
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This weekly report summarizes Pin Yi Tsai's current work on developing an integral image algorithm. It describes completing a serial version that processed over 15,000 samples in under 332 seconds. An error occurred in loading the CUDA library for the parallel GPU version, which was traced to the LD_LIBRARY_PATH variable being set as custom rather than environment. Work continues on implementing the CUDA version with 11 independent kernel functions.
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20131002
- 1. WEEKLY REPORT Wed., Oct 2, 2013 Pin Yi Tsai
- 2. OUTLINE • Current Work • Integral Image – serial version • Execution Error • In Process • Integral Image – CUDA version
- 3. CURRENT WORK - INTEGRAL IMAGE – SERIAL VERSION • Code Finished • Processed 15000+4140 samples in 331.93 seconds
- 4. CURRENT WORK - EXECUTION ERROR • error while loading shared libraries: libcudart.so.5.0: cannot open shared object file: No such file or directory • echo $LD_LIBRARY_PATH /usr/local/cuda-5.0/lib64:/lib • ldd ./IntegralImage libcudart.so.5.0 => not found
- 5. CURRENT WORK - EXECUTION ERROR (CONT.) • What causes this error? LD_LIBRARY_PATH is set in a shell which executes in .bashrc, but it seems to be set as a custom variable • How to solve? export LD_LIBRARY_PATH change custom variable to environment variable
- 6. CURRENT WORK - INTEGRAL IMAGE – CUDA VERSION • Still in process • Passing variables • independent 11 kernel functions
- 7. The End