def check_erf(dev, n, dtype):
A = te.placeholder((n, ), name="A", dtype=dtype)
C = te.compute(A.shape, lambda *i: te.erf(A(*i)), name="C")
s = te.create_schedule(C.op)
s[C].bind(s[C].op.axis[0], te.thread_axis("threadIdx.x"))
fun = tvm.build(s, [A, C], target)
source_str = fun.imported_modules[0].get_source()
matches = re.findall("erf", source_str)
error_matches = re.findall("erff", source_str)
assert len(matches) == 1 and len(error_matches) == 0
def check_erf(dev, n, dtype):
A = te.placeholder((n, ), name="A", dtype=dtype)
C = te.compute(A.shape, lambda *i: te.erf(A(*i)), name="C")
s = te.create_schedule(C.op)
s[C].bind(s[C].op.axis[0], tx)
fun = tvm.build(s, [A, C], target)
a = tvm.nd.empty((n, ), A.dtype, dev)
c = tvm.nd.empty((n, ), A.dtype, dev)
# Only need to test compiling here
fun(a, c)
def erf(x):
"""Take gauss error function of input x.
Parameters
----------
x : tvm.te.Tensor
Input argument.
Returns
-------
y : tvm.te.Tensor
The result.
"""
return te.compute(x.shape, lambda *i: te.erf(x(*i)))
