BackEnd Class Reference

#include <BackEnd.h>

Static Public Member Functions
static void	init (int argc, char **argv)
static void	exit (int status=0)
static void	suspend (void)
static void	awaken (void)
static void	barrier (void)
static void	ExitSchedOn (int pe)

Detailed Description

Copyright (c) 1995, 1996, 1997, 1998, 1999, 2000 by The Board of Trustees of the University of Illinois. All rights reserved.

Definition at line 12 of file BackEnd.h.

Member Function Documentation

awaken()

void BackEnd::awaken ( void  )

static

Definition at line 316 of file BackEnd.C.

References Node::enableExitScheduler(), and Node::Object().

Referenced by Controller::algorithm(), barrier(), and Controller::terminate().

                         {
  Node::Object()->enableExitScheduler();
}

barrier()

void BackEnd::barrier ( void  )

static

Definition at line 321 of file BackEnd.C.

References awaken(), and suspend().

                          {
  awaken();
  suspend();
}

exit()

void BackEnd::exit ( int  status = 0 )

static

Definition at line 277 of file BackEnd.C.

References cpuTime_start, memusage_MB(), and wallTime_start.

Referenced by after_backend_init(), NamdState::loadStructure(), and Node::startup().

                             {
  float cpuTime = CmiCpuTimer() - cpuTime_start;
  float wallTime = CmiWallTimer() - wallTime_start;
  CmiPrintf("====================================================\n\n"
            "WallClock: %f  CPUTime: %f  Memory: %f MB\n",
            wallTime, cpuTime, memusage_MB());
#ifdef NAMD_TCL
  Tcl_Finalize();
#endif
#if defined(NAMD_CUDA) || defined(NAMD_HIP)
#ifdef __APPLE__
#if 0 && CMK_MULTICORE
  CmiPrintf("EXITING ABNORMALLY TO AVOID HANGING CUDA RUNTIME THREADS\n");
  ::exit(0);
#endif
#endif
#endif
#ifdef NAMD_MIC
#if 0 && CMK_MULTICORE
  CmiPrintf("EXITING ABNORMALLY TO AVOID HANGING MIC OFFLOAD THREADS\n");
#pragma offload target(mic)
  {
    ::exit(0);
  }
#endif
#endif
#if CHARM_VERSION < 61000
  CkExit();
#else
  CkExit(status);
#endif
}

ExitSchedOn()

void BackEnd::ExitSchedOn ( int  pe )

static

Definition at line 68 of file BackEnd.C.

{
  void* msg = CmiAlloc(CmiMsgHeaderSizeBytes);
  CmiSetHandler(msg,CkpvAccess(exitSchedHndlr));
  CmiSyncSendAndFree(pe,CmiMsgHeaderSizeBytes,(char *)msg);
}

init()

void BackEnd::init ( int  argc, char **  argv  )

static

Definition at line 242 of file BackEnd.C.

References gNAMDBinaryName, master_init(), NAMD_die(), and slave_init().

Referenced by main().

                                        {

  gNAMDBinaryName = argv[0]+strlen(argv[0])-1;
  while(gNAMDBinaryName != argv[0]){
    if(*gNAMDBinaryName=='/' || *gNAMDBinaryName=='\\'){
      gNAMDBinaryName++;
      break;
    }
    gNAMDBinaryName--;
  }

#if defined(NAMD_CUDA) || defined(NAMD_HIP) || defined(NAMD_MIC)
  // look for but don't remove +idlepoll on command line
  int idlepoll = 0;
  for ( int i = 0; i < argc; ++i ) {
    if ( 0==strcmp(argv[i],"+idlepoll") ) {
      idlepoll = 1;
      break;
    }
  }
#endif

  ConverseInit(argc, argv, slave_init, 1, 1);  // calls slave_init on others

// idlepoll only matters for non-smp UDP layer
#if (defined(NAMD_CUDA) || defined(NAMD_HIP) || defined(NAMD_MIC)) && CMK_NET_VERSION && CMK_SHARED_VARS_UNAVAILABLE && CMK_WHEN_PROCESSOR_IDLE_USLEEP && ! CMK_USE_IBVERBS && ! CMK_USE_TCP
  if ( ! idlepoll ) {
    NAMD_die("Please add +idlepoll to command line for proper performance.");
  }
#endif

  master_init(argc, argv);
}

suspend()

void BackEnd::suspend ( void  )

static

Definition at line 311 of file BackEnd.C.

Referenced by barrier().

                          {
  CsdScheduler(-1);
}

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The documentation for this class was generated from the following files:

• BackEnd.h
• BackEnd.C