document how to limit number of cores; closes #56

dftlibs · Jul 31, 2024 · e192162 · e192162
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commit e192162
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diff --git a/README.md b/README.md
@@ -279,6 +279,12 @@ be able to use all available cores on the computer or computing node.  Since
 grids are currently generated atom by atom, it is also possible to parallelize
 "outside" by the caller.
 
+If you need to limit the number of cores used by Rayon, you can set (in this
+case limiting to 4 threads):
+```bash
+export RAYON_NUM_THREADS=4
+```
+
 
 ## Space partitioning