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#include <cassert>
#include <cstdio>
#include <cstring>
#include <list>
#include <cctk.h>
#include <cctk_Parameters.h>
#include <util_String.h>
#if HAVE_UNISTD_H
# include <fcntl.h>
# include <unistd.h>
#endif
#include <defs.hh>
#include <CactusTimer.hh>
#include <CactusTimerSet.hh>
#include <Timer.hh>
#include <TimerTree.hh>
namespace Timers {
using namespace std;
// A global timer set
CactusTimerSet timerSet;
// Add a timer
void CactusTimerSet::add(CactusTimer* const timer)
{
timers.insert(timer);
}
// Remove a timer
void CactusTimerSet::remove(CactusTimer* const timer)
{
timers.erase(timer);
}
// Print all timer names
void CactusTimerSet::printNames() const
{
printf("Timer names:\n");
int n = 0;
for (timers_t::const_iterator
itimer = timers.begin(); itimer != timers.end(); ++itimer)
{
printf(" [%4d] %s\n", n, (*itimer)->name().c_str());
++n;
}
}
// Print all timer data
void CactusTimerSet::printData()
{
for (timers_t::const_iterator
itimer = timers.begin(); itimer != timers.end(); ++itimer)
{
(*itimer)->printData();
}
printf("\n");
}
// Print all timer data
void CactusTimerSet::writeData(const cGH* const cctkGH,
const char* const filename)
{
const int oldfd = redirect(cctkGH, filename);
#if 0
printf("********************************************************************************\n");
#endif
printf("# Carpet timing information at iteration %d time %g:\n",
cctkGH->cctk_iteration, double(cctkGH->cctk_time));
timerSet.printData();
unredirect(oldfd);
}
// If filename is not empty, then redirect stdout to a file
int CactusTimerSet::redirect(const cGH* const cctkGH,
const char* const filename)
{
DECLARE_CCTK_PARAMETERS;
if (CCTK_EQUALS (filename, "")) {
return -1;
}
#ifndef HAVE_UNISTD_H
CCTK_WARN(CCTK_WARN_ALERT,
"Cannot redirect timer output to a file; the operating system does not support this");
return -1;
#else
const int myproc = CCTK_MyProc(cctkGH);
char fullname[10000];
Util_snprintf(fullname, sizeof fullname,
"%s/%s.%04d.txt", out_dir, filename, myproc);
int flags = O_WRONLY | O_CREAT | O_APPEND; // append
static bool first_time = true;
if (first_time) {
first_time = false;
if (IO_TruncateOutputFiles(cctkGH)) {
flags = O_WRONLY | O_CREAT | O_TRUNC; // truncate
}
}
// Temporarily redirect stdout
fflush(stdout);
const int oldfd = dup(1); // fd 1 is stdout
const int mode = 0644; // rw-r--r--, or a+r u+w
const int fdfile = open(fullname, flags, mode);
if (fdfile < 0) {
CCTK_VWarn(CCTK_WARN_ABORT, __LINE__, __FILE__, CCTK_THORNSTRING,
"Could not open timer output file \"%s\"", fullname);
close(oldfd);
return -1;
}
// close(1);
// const int fd = dup(fdfile); // dup to 1, i.e., stdout again
const int fd = dup2(fdfile, 1); // dup to 1, i.e., stdout again
assert(fd == 1);
close(fdfile);
return oldfd;
#endif
}
// Redirect stdout back
void CactusTimerSet::unredirect(const int oldfd)
{
if (oldfd < 0) return;
#ifdef HAVE_UNISTD_H
fflush (stdout);
// close(1);
// const int fd = dup(oldfd);
const int fd = dup2(oldfd, 1);
if (not (fd == 1)) {
fprintf(stderr, "oldfd=%d fd=%d\n", oldfd, fd);
}
assert(fd == 1);
close(oldfd);
#endif
}
#if 0
/// Reduce each timer in the set across all processes and update
/// each timer with the reduction information.
void CactusTimerSet::reduce()
{
// Collect timer names that each process has
// Construct union of all timer names, sort canonically and assign
// integer identifiers
// For each timer, identify which processes have that timer
// Reduce the timer across all those processes (return to root proc only)
serialise(cout);
}
ostream& CactusTimerSet::serialise(ostream &os)
{
for (timers_t::const_iterator
itimer = timers.begin(); itimer != timers.end(); ++itimer)
{
(*itimer)->serialise(os);
os << endl;
}
return os;
}
#endif
} // namespace Carpet
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