Added a test case that does a massive GPU reduction which will hopefully catch any regressions in reduction correctness.
Added a test case that does a massive GPU reduction which will hopefully catch any regressions in reduction correctness.

gilbo/liszt-ebb,manopapad/liszt-legion,manopapad/liszt-legion,gilbo/liszt-ebb,gilbo/liszt-ebb,gilbo/liszt-ebb,gilbo/liszt-ebb,gilbo/liszt-ebb,manopapad/liszt-legion,manopapad/liszt-legion,manopapad/liszt-legion