Adjust /proc/*/oom_adj

INSTALL.rst

@@ -22,8 +22,8 @@ This script will create the :file:`quantum_package.rc` bash script, which
 sets all the environment variables required for the normal operation of the
 *Quantum Package*.
 
-Running this script will also tell you which external dependencies need to be
-installed.
+Running this script will also tell you which external dependencies are missing
+and need to be installed.
 
 Then, source the :file:`quantum_package.rc` file in your current shell before
 installing the dependencies.
@@ -50,9 +50,10 @@ Requirements
 - |Ninja| : a parallel build system
 
 
-When all the dependencies have been installed, go into the config directory,
-and copy the configuration file that corresponds to your architecture. Modify
-it if needed, and run :command:`configure` with :option:`configure -c`.
+When all the dependencies have been installed, go into the :file:`config`
+directory, and copy the configuration file that corresponds to your
+architecture. Modify it if needed, and run :command:`configure` with
+:option:`configure -c`.
 
 .. code:: bash
 

src/Ezfio_files/ezfio.irp.f

@@ -31,6 +31,18 @@ BEGIN_PROVIDER [ character*(128), ezfio_filename ]
 
   call ezfio_set_file(ezfio_filename)
 
+  ! Adjust out-of-memory killer flag such that the current process will be
+  ! killed first by the OOM killer, allowing compute nodes to survive 
+  integer, external :: getpid
+  integer :: pid
+  character*(64) :: command, pidc
+  pid = getpid()
+  write(pidc,*) pid
+  write(command,*) 'echo 15 > /proc//'//trim(adjustl(pidc))//'/oom_adj'
+  print '(A)', command
+  call system(command)
+
+
 END_PROVIDER
 
 BEGIN_PROVIDER [ character*(128), ezfio_work_dir ]