Merge pull request #430 from ASFHyP3/develop

Release v5.7.4

CHANGELOG.md

@@ -7,6 +7,12 @@ and this project adheres to [PEP 440](https://www.python.org/dev/peps/pep-0440/)
 and uses [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 
+## [5.7.4]
+
+### Added
+- `++omp-num-threads` parameter to the `main()` entrypoint to limit the number of threads used by GAMMA during
+  multiprocessing.
+
 ## [5.7.3]
 
 ### Added

hyp3_gamma/__main__.py

@@ -26,9 +26,13 @@ def main():
         '++process', choices=['rtc', 'insar', 'water_map'], default='rtc',
         help='Select the HyP3 entrypoint version to use'
     )
+    parser.add_argument('++omp-num-threads', type=int, help='The number of OpenMP threads to use for parallel regions')
     args, unknowns = parser.parse_known_args()
     (process_entry_point,) = entry_points(group='console_scripts', name=args.process)
 
+    if args.omp_num_threads:
+        os.environ['OMP_NUM_THREADS'] = str(args.omp_num_threads)
+
     sys.argv = [args.process, *unknowns]
     sys.exit(
         process_entry_point.load()()