limit data.table parallelism too

microsoft · Dec 6, 2023 · ebf61f1 · ebf61f1
1 parent b068106
commit ebf61f1
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/R-package/tests/testthat/helper.R b/R-package/tests/testthat/helper.R
@@ -13,6 +13,10 @@
 .LGB_MAX_THREADS <- 2L
 setLGBMthreads(.LGB_MAX_THREADS)
 
+# control data.table parallelism
+# ref: https://github.com/Rdatatable/data.table/issues/5658
+data.table::setDTthreads(1L)
+
 # by default, how much should results in tests be allowed to differ from hard-coded expected numbers?
 .LGB_NUMERIC_TOLERANCE <- 1e-6