marcoabreu commented on a change in pull request #16570: [WIP]Showing proper
error message when an attempt is made to create large tensor but MXNet is not
built with it
URL: https://github.com/apache/incubator-mxnet/pull/16570#discussion_r337262526
##########
File path: python/mxnet/ndarray/ndarray.py
##########
@@ -155,6 +155,11 @@ def _new_alloc_handle(shape, ctx, delay_alloc,
dtype=mx_real_t):
ctypes.c_int(int(_DTYPE_NP_TO_MX[np.dtype(dtype).type])),
ctypes.byref(hdl)))
else:
+ size = 1
+ for idx in shape:
+ size = size * idx
+ if size > 2**32:
+ print("Size of tensor you are trying to allocate is larger than
2^32 elements. Please build with flag USE_INT64_TENSOR_SIZE=1")
Review comment:
Generally I'd say ArgumentException, but you can also let the backend handle
throwing an error
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