Move reframe test files into seperate directory

reframe_tests/benchmark_tests/reframe_benchmarks.py

@@ -0,0 +1,33 @@
+import reframe as rfm
+from reframe.core.builtins import parameter, run_after
+
+from reframe_tests.tests.base_tests import GprMaxRegressionTest
+
+"""ReFrame tests for performance benchmarking
+
+    Usage:
+        cd gprMax/reframe_tests
+        reframe -C configuraiton/{CONFIG_FILE} -c reframe_benchmarks.py -c base_tests.py -r
+"""
+
+
+@rfm.simple_test
+class SingleNodeBenchmark(GprMaxRegressionTest):
+    tags = {"benchmark", "single node", "openmp"}
+
+    omp_threads = parameter([1, 2, 4, 8, 16, 32, 64, 128])
+    domain = parameter([0.1, 0.15, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8])
+    cpu_freq = parameter([2000000, 2250000])
+    time_limit = "8h"
+
+    @run_after("init")
+    def setup_env_vars(self):
+        self.num_cpus_per_task = self.omp_threads
+        self.env_vars["SLURM_CPU_FREQ_REQ"] = self.cpu_freq
+        super().setup_env_vars()
+
+    @run_after("init")
+    def set_model_file(self):
+        input_file = f"benchmark_model_{self.domain}.in"
+        self.executable_opts = [input_file]
+        self.keep_files = [input_file]