This patch updates the syntax for nvgpu_arrive Op in matmulBuilder.py. This fixes the compilation error for this test. For the warp-specialized matmul_kernel implementation, removing the WaitGroupSyncOp (after the mma-main-loop) fixes the hang observed. With these two fixes, the test compiles and executes successfully on an sm90a machine. Signed-off-by: Durgadoss R <durgadossr@nvidia.com>