rec: run less bulktest variations

What we have been doing until now is a bit overkill.

diff --git a/.github/workflows/build-and-test-all.yml b/.github/workflows/build-and-test-all.yml
index 573a4862ee99b4d2ba230d6b6752a45ed32095f1..b202abe1b3a438edb0d2690aac689f6069e9b84a 100644 (file)
--- a/.github/workflows/build-and-test-all.yml
+++ b/.github/workflows/build-and-test-all.yml
@@ -346,8 +346,8 @@ jobs:
     strategy:
       matrix:
         sanitizers: [ubsan+asan]
-        threads: [1, 2, 3, 4, 8, 16]
-        mthreads: [2048, 4096]
+        threads: [1, 2, 3, 4, 8]
+        mthreads: [2048]
         shards: [1, 2, 1024]
     env:
       UBSAN_OPTIONS: 'print_stacktrace=1:halt_on_error=1:suppressions=${{ github.workspace }}/build-scripts/UBSan.supp'