eric-haibin-lin commented on a change in pull request #10371: [MXNET-263]
Support for dot(dns, csr) = dns and dot(dns, csr.T) = dns on GPU
URL: https://github.com/apache/incubator-mxnet/pull/10371#discussion_r180294411
##########
File path: src/operator/tensor/dot.cc
##########
@@ -51,12 +150,16 @@ NNVM_REGISTER_OP(dot)
dot(x,y)[0,0,1,1] = 0
sum(x[0,0,:]*y[:,1,1]) = 0
-The storage type of ``dot`` output depends on storage types of inputs and
transpose options:
+The storage type of ``dot`` output depends on storage types of inputs,
transpose options and given
+hint for output storage type:
+Implemented sprase operations include:
- dot(csr, default) = default
- dot(csr.T, default) = row_sparse
- dot(csr, row_sparse) = default
-- dot(default, csr) = csr
+- dot(default, csr) = csr on CPU only
+- dot(default, csr) = dense on GPU only
Review comment:
Could you show the output storage with specific values of
`forward_stype_hint`? e.g.
dot(csr, dense, trx_a=True) = row_sparse
dot(csr, dense, forward_stype_hint='default', tx_a=True) = default
dot(default, csr, forward_stype_hint='default') = default (GPU only)
What happens if someone uses dot(dense, dense, forward_stype_hint='csr')?
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
With regards,
Apache Git Services
