src/gromacs/taskassignment/reportgpuusage.h

   1 /*
   2  * This file is part of the GROMACS molecular simulation package.
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   4  * Copyright (c) 2017, by the GROMACS development team, led by
   5  * Mark Abraham, David van der Spoel, Berk Hess, and Erik Lindahl,
   6  * and including many others, as listed in the AUTHORS file in the
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  35 /*! \defgroup module_taskassignment Assigning simulation tasks to hardware (taskassignment)
  36  * \ingroup group_mdrun
  37  * \brief Provides code that manages assignment of simulation tasks to hardware.
  38  */
  39 /*! \internal
  40  * \file
  41  * \brief Declares routine for reporting GPU usage.
  42  *
  43  * \author Mark Abraham <mark.j.abraham@gmail.com>
  44  * \ingroup module_taskassignment
  45  */
  46 #ifndef GMX_TASKASSIGNMENT_REPORTGPUUSAGE_H
  47 #define GMX_TASKASSIGNMENT_REPORTGPUUSAGE_H
  48
  49 #include <cstdlib>
  50
  51 #include "gromacs/taskassignment/taskassignment.h"
  52
  53 namespace gmx
  54 {
  55
  56 class MDLogger;
  57
  58 /*! \brief Log a report on how GPUs are being used on
  59  * the ranks of the physical node of rank 0 of the simulation.
  60  *
  61  * \todo It could be useful to report also whether any nodes differed,
  62  * and in what way.
  63  *
  64  * \param[in]  mdlog                               Logging object.
  65  * \param[in]  userSetGpuIds                       Whether the user selected the GPU ids
  66  * \param[in]  gpuTaskAssignmentOnRanksOfThisNode  The selected GPU IDs.
  67  * \param[in]  numGpuTasksOnThisNode               The number of GPU tasks on this node.
  68  * \param[in]  numPpRanks                          Number of PP ranks on this node
  69  * \param[in]  bPrintHostName                      Print the hostname in the usage information
  70  *
  71  * \throws     std::bad_alloc if out of memory */
  72 void
  73 reportGpuUsage(const MDLogger                &mdlog,
  74                bool                           userSetGpuIds,
  75                const GpuTaskAssignments      &gpuTaskAssignmentOnRanksOfThisNode,
  76                size_t                         numGpuTasksOnThisNode,
  77                size_t                         numPpRanks,
  78                bool                           bPrintHostName);
  79
  80
  81 } // namespace
  82
  83 #endif