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| author | John Kirkham <kirkhamj@janelia.hhmi.org> | 2016-01-05 22:15:08 -0500 |
|---|---|---|
| committer | John Kirkham <kirkhamj@janelia.hhmi.org> | 2016-01-06 15:03:13 -0500 |
| commit | 01acef82fdd02c968601b41d27f3ac6461dbc459 (patch) | |
| tree | bbff80c4581c8be5548554bd3374c10ea18d4993 /doc | |
| parent | 924e08f8eabe0aafb77d6c3ce435e2a6cf2df2e6 (diff) | |
| download | numpy-01acef82fdd02c968601b41d27f3ac6461dbc459.tar.gz | |
DOC: Update the 1.11.0 release notes to mention optimizations of `A.T @ A` and `A @ A.T`.
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/release/1.11.0-notes.rst | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/doc/release/1.11.0-notes.rst b/doc/release/1.11.0-notes.rst index c15936cc3..6f79e3c8b 100644 --- a/doc/release/1.11.0-notes.rst +++ b/doc/release/1.11.0-notes.rst @@ -130,6 +130,14 @@ useless computations when printing a masked array. The function now uses the fallocate system call to reserve sufficient diskspace on filesystems that support it. +``np.dot`` optimized for operations of the form ``A.T @ A`` and ``A @ A.T`` +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +Previously, ``gemm`` BLAS operations were used for all matrix products. Now, +if the matrix product is between a matrix and its transpose, it will use +``syrk`` BLAS operations for a performance boost. + +**Note:** Requires the transposed and non-transposed matrices to share data. + Changes ======= |