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-rw-r--r--README8
1 files changed, 8 insertions, 0 deletions
diff --git a/README b/README
index 40a19a7..6803da9 100644
--- a/README
+++ b/README
@@ -52,3 +52,11 @@ slower code.)
VECTORISE_EMULATE_AVX (default "no", experimental): Emulate AVX
instructions with SSE2 instructions. This produces slower code, but
can be used to test AVX code on systems that don't support AVX.
+
+3. Tests
+
+Correctness testing is run at startup (in CCTK_PARAMCHECK) provided the
+Vectors thorn is in the list of ActiveThorns. This aims to test all vector
+operations by comparing the results with the same operations done using a
+scalar implementation. The number of passed tests is always reported. If any
+test fails, the run is aborted immediately.