[Vulkan][Unittests] Add parametrization to vulkan unit tests.

This also switches to using `vulkan -from_device=0` by default, and
marks tests as `pytest.xfail` if the device does not support the
functionality being tested.

python/tvm/testing.py

@@ -414,7 +414,7 @@ def _get_targets(target_str=None):
 
 
 DEFAULT_TEST_TARGETS = (
-    "llvm;cuda;opencl;metal;rocm;vulkan;nvptx;"
+    "llvm;cuda;opencl;metal;rocm;vulkan -from_device=0;nvptx;"
     "llvm -device=arm_cpu;opencl -device=mali,aocl_sw_emu"
 )
 

tests/python/unittest/test_target_codegen_bool.py

@@ -21,59 +21,54 @@
 import numpy as np
 import tvm.testing
 
+arr_size = tvm.testing.parameter(32)
 
-@tvm.testing.uses_gpu
-def test_cmp_load_store():
-    n = 32
-    A = te.placeholder((n,), name="A")
-    B = te.placeholder((n,), name="B")
+
+@tvm.testing.fixture
+def compute(arr_size):
+    A = te.placeholder((arr_size,), name="A")
+    B = te.placeholder((arr_size,), name="B")
     C = te.compute(A.shape, lambda *i: A(*i) > B(*i), name="C")
     D = te.compute(C.shape, lambda *i: tvm.tir.all(C(*i), A(*i) > 1).astype("float32"), name="D")
+    return [A, B, C, D]
 
-    def check_llvm():
-        if not tvm.testing.device_enabled("llvm"):
-            return
+
+@tvm.testing.fixture
+def schedule(target, compute):
+    target = tvm.target.Target(target)
+    A, B, C, D = compute
+    if target.kind.name == "llvm":
         s = te.create_schedule(D.op)
         xo, xi = s[C].split(C.op.axis[0], factor=4)
         xo1, xo2 = s[C].split(xo, factor=13)
         s[C].parallel(xo2)
-        # BUILD and invoke the kernel.
-        f = tvm.build(s, [A, B, D], "llvm")
-        dev = tvm.cpu(0)
-        a_np = np.random.uniform(size=n).astype(A.dtype)
-        a = tvm.nd.array(a_np, dev)
-        b = tvm.nd.array(np.random.uniform(size=n).astype(B.dtype), dev)
-        d = tvm.nd.array(np.zeros(n, dtype=D.dtype), dev)
-        f(a, b, d)
-        np.testing.assert_equal(
-            d.numpy(),
-            np.logical_and(a.numpy() > b.numpy(), a.numpy() > 1).astype("float32"),
-        )
 
-    def check_device(device):
-        if not tvm.testing.device_enabled(device):
-            return
-        dev = tvm.device(device, 0)
+    else:
         s = te.create_schedule(D.op)
         for stage in [C, D]:
             xo, xi = s[stage].split(stage.op.axis[0], factor=4)
             s[stage].bind(xo, te.thread_axis("blockIdx.x"))
             s[stage].bind(xi, te.thread_axis("threadIdx.x"))
-        f = tvm.build(s, [A, B, D], device)
-        a_np = np.random.uniform(size=n).astype(A.dtype)
-        a = tvm.nd.array(a_np, dev)
-        b = tvm.nd.array(np.random.uniform(size=n).astype(B.dtype), dev)
-        d = tvm.nd.array(np.zeros(n, dtype=D.dtype), dev)
-        f(a, b, d)
-        np.testing.assert_equal(
-            d.numpy(),
-            np.logical_and(a.numpy() > b.numpy(), a.numpy() > 1).astype("float32"),
-        )
 
-    check_llvm()
-    for device in ["vulkan", "opencl", "cuda", "rocm", "metal"]:
-        check_device(device)
+    return s
+
+
+@tvm.testing.uses_gpu
+def test_cmp_load_store(target, dev, arr_size, compute, schedule):
+    A, B, _, D = compute
+    f = tvm.build(schedule, [A, B, D], target)
+
+    a_np = np.random.uniform(size=arr_size).astype(A.dtype)
+    b_np = np.random.uniform(size=arr_size).astype(B.dtype)
+    a = tvm.nd.array(a_np, dev)
+    b = tvm.nd.array(b_np, dev)
+    d = tvm.nd.array(np.zeros(arr_size, dtype=D.dtype), dev)
+    f(a, b, d)
+    np.testing.assert_equal(
+        d.numpy(),
+        np.logical_and(a_np > b_np, a_np > 1).astype("float32"),
+    )
 
 
 if __name__ == "__main__":
-    test_cmp_load_store()
+    sys.exit(pytest.main(sys.argv))