Merge pull request #298 from boegel/petsc_parallel

only use half the cores for building/testing PETSc, since in particular the test suite can be quite memory-hungry

Author: bedroge

eb_hooks.py

@@ -2485,6 +2485,11 @@ def set_maximum(parallel, max_value):
         '*': (divide_by_factor, 2),
         CPU_TARGET_A64FX: (set_maximum, 1),
     },
+    'PETSc': {
+        # PETSc test suite can be quite memory hungry,
+        # so reduce parallelism when running tests (also impacts build)
+        '*': (divide_by_factor, 2),
+    },
     'QuantumESPRESSO': {
         CPU_TARGET_A64FX: (set_maximum, 6),
     },