lib/coderunner/system_modules/generic_linux.rb in coderunner-0.12.5 vs lib/coderunner/system_modules/generic_linux.rb in coderunner-0.12.6

@@ -13,9 +13,10 @@
 	end
 end
 
 def run_command
 	if rcp.uses_mpi
+    raise "Number of processors (nprocs) not specified" unless @nprocs
 		return %[time mpirun -np #{@nprocs} #{executable_location}/#{executable_name} #{parameter_string} > #{output_file} 2> #{error_file}]
 	else
 		return %[#{executable_location}/#{executable_name} #{parameter_string} > #{output_file} 2> #{error_file}]
 	end
 end