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(c) 2007-2011 The Board of Trustees of the University of Illinois. This software is distributed under the Illinois Open Source License agreement. The LICENSE file contains a copy of the license agreement. Introduction ------------ The Parboil suite was developed from a collection of benchmarks used at the University of Illinois to measure and compare the performance of computation-intensive algorithms executing on either a CPU or a GPU. Each implementation of a GPU algorithm is either in CUDA or OpenCL, and requires a system capable of executing applications using those APIs. Quick setup guide ----------------- To use the parboil benchmark suite: Create a 'benchmarks' subdirectory (you can also use a symbolic link) and put benchmarks in it. There should be one subdirectory for each benchmark. We distribute some benchmarks as a separate archive file. See the README.benchmarks file for information about the expected format of each benchmark directory. Create a 'datasets' subdirectory (you can also use a symbolic link) and put datasets in it. There should be one subdirectory for each benchmark. We distribute some datasets as a separate archive file. There are a number of files that may not be automatically marked executable after unpacking. Ensure that they are executable by running 'chmod u+x' with the filename as its argument. If your shell is bash, the following will work: chmod u+x ./parboil chmod u+x benchmarks/*/tools/compare-output Create a Makefile.conf file in parboil/common to set a few system-specific paths. You can use some of the examples in that directory as a place to start. Type './parboil help' to display the driver commands. You can get help on a particular comand X with './parboil help X'. Run './parboil' with options to do stuff. Running a benchmark ------------------- You can see a list of benchmarks, and the available versions of each benchmark, with the command ./parboil list Suppose you want to compile and run the CUDA version of the benchmark "cutcp". Then the following commands will do this: ./parboil compile cutcp cuda ./parboil run cutcp cuda default Timing information is recorded with a combination of standard system timers and CUDA API event timers. Each benchmark should display timer values following this format: IO: (seconds spent interacting with the file system) Kernel: (seconds spent doing device computation, measured asynchronously) Copy: (seconds CPU spent synchronously copying data to/from the device memory) Driver: (seconds of CPU time spent sending commands to the device driver) Compute: (seconds of CPU time spent in computation) Copy Async: (seconds duration of asynchronous copies to/from the device memory) CPU/Kernel Overlap: (seconds double-counted by asynchronous and CPU timers) The driver prints "Pass" if the benchmark's output appears to be correct (i.e. the compare-output script has an exit code of zero)
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