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display number of threads in use for LAMMPS instance in status bar

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This commit is contained in:
Axel Kohlmeyer
2023-07-31 07:59:10 -04:00
parent 2f159df3b7
commit d41bf628c7
3 changed files with 9 additions and 6 deletions
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12
tools/lammps-gui/lammpsgui.cpp
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@ -79,14 +79,16 @@ LammpsGui::LammpsGui(QWidget *parent, const char *filename) :
#if defined(_OPENMP)
// use maximum number of available threads unless OMP_NUM_THREADS was set
auto nthreads = std::to_string(omp_get_max_threads());
nthreads = omp_get_max_threads();
#if _WIN32
if (!getenv("OMP_NUM_THREADS")) {
_putenv_s("OMP_NUM_THREADS", nthreads.c_str());
_putenv_s("OMP_NUM_THREADS", std::to_string(nthreads).c_str());
}
#else
setenv("OMP_NUM_THREADS", nthreads.c_str(), 0);
setenv("OMP_NUM_THREADS", std::to_string(nthreads).c_str(), 0);
#endif
#else
nthreads = 1;
#endif
const char *tmpdir = getenv("TMPDIR");
@ -144,7 +146,7 @@ LammpsGui::LammpsGui(QWidget *parent, const char *filename) :
#endif
status = new QLabel("Ready.");
status->setFixedWidth(250);
status->setFixedWidth(300);
ui->statusbar->addWidget(status);
dirstatus = new QLabel(QString(" Directory: ") + current_dir);
dirstatus->setMinimumWidth(500);
@ -468,7 +470,7 @@ void LammpsGui::run_buffer()
progress->setValue(0);
dirstatus->hide();
progress->show();
status->setText("Running LAMMPS. Please wait...");
status->setText(QString("Running LAMMPS with %1 thread(s)...").arg(nthreads));
status->repaint();
start_lammps();
if (!lammps_handle) return;

1
tools/lammps-gui/lammpsgui.h
View File

@ -92,6 +92,7 @@ private:
void *plugin_handle;
const char *plugin_path;
bool is_running;
int nthreads;
std::vector<char *> recent_files;
std::vector<char *> lammps_args;
};