getting error `RuntimeError: Cannot call @triton.jit'd outside of the scope of a kernel` when using tl.zeros()

[ZhaoyueCheng]

Hi,

I'm getting error RuntimeError: Cannot call @triton.jit'd outside of the scope of a kernel

when running the code block

def sum_spec(x: Float32[Tensor, "4 200"]) -> Float32[Tensor, "4"]:
    return x.sum(1)

@triton.jit
def sum_kernel(x_ptr, z_ptr, N0, N1, T, B0: tl.constexpr, B1: tl.constexpr):
    pid_0 = tl.program_id(0)

    offsets_x = tl.arange(0, B0) + pid_0 * B0
    mask_x = offsets_x < N0

    #### don't error out
    # z = tl.load(z_ptr + offsets_x, mask=mask_x)
    # z = 0
    #### error out
    z = tl.zeros((B0,), dtype=tl.float32) 

    for i in range(0, T, B1):
      offsets_y = tl.arange(0, B1) + i
      mask = (offsets_x[:, None] < N0) & (offsets_y[None, :] < T)

      x = tl.load(x_ptr + offsets_x[:, None] * T + offsets_y[None, :], mask=mask, other=0.0)
      z += tl.sum(x, axis=1)

    tl.store(z_ptr + offsets_x, z, mask=mask_x)

    return

test(sum_kernel, sum_spec, B={"B0": 1, "B1": 32}, nelem={"N0": 4, "N1": 32, "T": 200})

and it errors out at the line when creating tl.zeros

[Jokeren]

Working on it. It would be better next time if you could initialize torch tensors.

We would like to run standalone tests that only depend on triton-viz.