Do not run BiCGStab(l) with staggered half precision since it is unst…

…able
lattice · Dec 4, 2024 · 8ffcdd5 · 8ffcdd5
1 parent 22393c5
commit 8ffcdd5
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/tests/staggered_invert_test_gtest.hpp b/tests/staggered_invert_test_gtest.hpp
@@ -53,6 +53,10 @@ bool skip_test(test_t param)
     // MR struggles with the staggered and asqtad spectrum, it's not MR's fault
     if (solution_type == QUDA_MAT_SOLUTION && solve_type == QUDA_DIRECT_SOLVE && inverter_type == QUDA_MR_INVERTER)
       return true;
+
+    // BiCGStab-L is unstable with staggered operator with low precision
+    // we could likely restore this when 20-bit quark fields are merged in
+    if (inverter_type == QUDA_BICGSTABL_INVERTER && prec_sloppy < QUDA_SINGLE_PRECISION) return true;
   }
 
   // CG3 is rather unstable with low precision