src/gromacs/gpu_utils/ocl_caching.h

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  35 /*! \internal \file
  36  *  \brief Declare infrastructure for managing caching of OpenCL
  37  *  JIT-ted binaries
  38  *
  39  *  This functionality is currently disabled in compileProgram()
  40  *
  41  *  \author Dimitrios Karkoulis <dimitris.karkoulis@gmail.com>
  42  *  \author Anca Hamuraru <anca@streamcomputing.eu>
  43  *  \author Teemu Virolainen <teemu@streamcomputing.eu>
  44  *  \author Mark Abraham <mark.j.abraham@gmail.com>
  45  */
  46 #ifndef GMX_GPU_UTILS_OCL_CACHING_H
  47 #define GMX_GPU_UTILS_OCL_CACHING_H
  48
  49 #include <string>
  50
  51 #include "gromacs/gpu_utils/oclutils.h"
  52
  53 namespace gmx
  54 {
  55 namespace ocl
  56 {
  57
  58 /*! \brief Construct the name for the binary cache file
  59  *
  60  * \param[in]  kernelFilename  Name of the kernel from which the binary will be compiled.
  61  * \param[in]  deviceId        ID of the device upon which the binary is used.
  62  *
  63  * \todo The set of preprocessor options should also form part of the
  64  * identification of the cached binary. Also perhaps compiler, runtime
  65  * and device version info?
  66  *
  67  * \todo Mutual exclusion of ranks and nodes should also be implemented
  68  * if/when caching is re-enabled.
  69  *
  70  * \returns The name of the cache file.
  71  */
  72 std::string makeBinaryCacheFilename(const std::string &kernelFilename,
  73                                     cl_device_id       deviceId);
  74
  75 /*! \brief Check if there's a valid cache available, and return it if so
  76  *
  77  * \param[in]  filename   Name of valid file containing the binary cache
  78  * \param[in]  context    The OpenCL context
  79  * \param[in]  deviceId   The ID of the device on which to use the program
  80  *
  81  * \returns The OpenCL program read from the cache
  82  *
  83  * \throws InternalError  if an OpenCL error was encountered
  84  *         FileIOError    if the file could not be opened
  85  */
  86 cl_program
  87 makeProgramFromCache(const std::string &filename,
  88                      cl_context         context,
  89                      cl_device_id       deviceId);
  90
  91 /*! \brief Implement caching of OpenCL binaries
  92  *
  93  * \param[in] program     Index of program to cache
  94  * \param[in] filename    Name of file to use for the cache
  95  *
  96  * \throws InternalError  if an OpenCL error was encountered
  97  *         FileIOError    if the file could not be opened
  98  */
  99 void
 100 writeBinaryToCache(cl_program program, const std::string &filename);
 101
 102 } // namespace ocl
 103 } // namespace gmx
 104
 105 #endif