added to skip memory intensive tests when on personal PC

test/test_elastic_local_abc.py

@@ -6,26 +6,43 @@
 expected_mechanical_energy = 0.25
 
 
+def has_sufficient_memory():
+    meminfo = {}
+    with open('/proc/meminfo') as f:
+        for line in f:
+            parts = line.split(':')
+            if len(parts) == 2:
+                meminfo[parts[0].strip()] = parts[1].strip()
+    total_memory_kb = int(meminfo.get('MemTotal', '0 kB').split()[0])
+    total_memory_gb = total_memory_kb / 1024 / 1024
+    print(f"Total system memory {total_memory_gb}")
+    return total_memory_gb > 16
+
+
+@pytest.mark.skipif(not has_sufficient_memory(), reason="Insufficient memory")
 def test_stacey_abc():
     wave = build_solver("Stacey", "backward")
     wave.forward_solve()
     last_mechanical_energy = wave.field_logger.get("mechanical_energy")
     assert last_mechanical_energy < expected_mechanical_energy
 
 
+@pytest.mark.skipif(not has_sufficient_memory(), reason="Insufficient memory")
 def test_clayton_engquist_abc():
     wave = build_solver("CE_A1", "backward")
     wave.forward_solve()
     last_mechanical_energy = wave.field_logger.get("mechanical_energy")
     assert last_mechanical_energy < expected_mechanical_energy
 
 
+@pytest.mark.skipif(not has_sufficient_memory(), reason="Insufficient memory")
 def test_with_central():
     wave = build_solver("Stacey", "central")
     with pytest.raises(AssertionError):
         wave.forward_solve()
 
 
+@pytest.mark.skipif(not has_sufficient_memory(), reason="Insufficient memory")
 def test_with_backward_2nd():
     wave = build_solver("Stacey", "backward_2nd")
     wave.forward_solve()