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Posted to commits@mxnet.apache.org by GitBox <gi...@apache.org> on 2020/08/26 01:16:13 UTC

[GitHub] [incubator-mxnet] Zha0q1 opened a new issue #19014: Cannot modify last element of large tensors

Zha0q1 opened a new issue #19014:
URL: https://github.com/apache/incubator-mxnet/issues/19014


   It looks like for some reason the last element of a large tensor cannot be modified:
   ```python
   INT_OVERFLOW = 2**31-1
   A = np.zeros((2, INT_OVERFLOW))
   A[1, -1] = 1
   print(A)
   ```
   gives
   ```
   [[0. 0. 0. ... 0. 0. 0.]
    [0. 0. 0. ... 0. 0. 1.]]
   ```
   However,
   ```python
   INT_OVERFLOW = 2**31
   A = np.zeros((2, INT_OVERFLOW))
   A[1, -1] = 1
   print(A)
   ```
   gives
   ```
   [[0. 0. 0. ... 0. 0. 0.]
    [0. 0. 0. ... 0. 0. 0.]]
   ```
   Even this don't work:
   ```
   INT_OVERFLOW = 2**31
   A = np.zeros((2, INT_OVERFLOW))
   A[1, INT_OVERFLOW-2] = 1
   print(A)
   ```
   ```
   [[0. 0. 0. ... 0. 0. 0.]
    [0. 0. 0. ... 0. 0. 0.]]
   ```
   This is fine tho:
   ```
   INT_OVERFLOW = 2**31
   A = np.zeros((2, INT_OVERFLOW))
   A[1, INT_OVERFLOW-2] = 1
   print(A)
   ```
   ```
   [[0. 0. 0. ... 0. 0. 0.]
    [0. 0. 0. ... 0. 1. 0.]]
   ```
   
   I will probably work on a fix by this week


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[GitHub] [incubator-mxnet] sxjscience closed issue #19014: Cannot modify elements in large tensors where index > int_max

Posted by GitBox <gi...@apache.org>.
sxjscience closed issue #19014:
URL: https://github.com/apache/incubator-mxnet/issues/19014


   


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