black-scholes: add partial gpu support, verification is skipped

Author: tkarna

Diff for: examples/black_scholes.py

@@ -246,15 +246,23 @@ def eval():
     info(f"Median rate: {perf_rate:.5f} Mopts/s")
 
     # verify
-    call, put = args[-2], args[-1]
-    expected_call = 16.976097804669887
-    expected_put = 0.34645174725098116
-    call_value = float(call[0])
-    put_value = float(put[0])
-    assert numpy.allclose(call_value, expected_call)
-    assert numpy.allclose(put_value, expected_put)
-
-    info("SUCCESS")
+    if device:
+        # FIXME gpu.memcpy to host requires identity layout
+        # FIXME reduction on gpu
+        # call = args[-2].to_device()
+        # put = args[-1].to_device()
+        pass
+    else:
+        call = args[-2]
+        put = args[-1]
+        expected_call = 16.976097804669887
+        expected_put = 0.34645174725098116
+        call_value = float(call[0])
+        put_value = float(put[0])
+        assert numpy.allclose(call_value, expected_call)
+        assert numpy.allclose(put_value, expected_put)
+        info("SUCCESS")
+
     fini()