masahi commented on a change in pull request #4550: [Perf] Add CublasLt extern
support for better Igemm performance
URL: https://github.com/apache/incubator-tvm/pull/4550#discussion_r360670635
##########
File path: tests/python/contrib/test_cublas.py
##########
@@ -44,6 +45,64 @@ def verify(target="cuda"):
c.asnumpy(), np.dot(a.asnumpy().astype(C.dtype),
b.asnumpy().astype(C.dtype)), rtol=rtol)
verify()
+def roundoff(v, d):
+ return int(np.floor((v + d - 1) / d) * d)
+
+def verify_matmul_add_igemm(in_dtype, out_dtype, rtol=1e-5):
+ n = 1024
+ l = 1024
+ m = 1024
+ L = roundoff(l, 32)
+ N = roundoff(n, 8)
+ N_out = roundoff(n, 32)
+
+ A = tvm.placeholder((N, L), name='A', dtype=in_dtype)
+ B = tvm.placeholder((m, L), name='B', dtype=in_dtype)
+ # C has CUBLASLT_ORDER_COL32 layout, thus a different shape
+ C = cublaslt.matmul(A, B, False, True, m, N_out, dtype=out_dtype)
+ s = tvm.create_schedule(C.op)
+
+ def verify(target="cuda"):
+ if not tvm.module.enabled(target):
+ print("skip because %s is not enabled..." % target)
+ return
+ if not tvm.get_global_func("tvm.contrib.cublas.matmul", True):
Review comment:
we need to discuss if we want to update CI @tqchen
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