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* fix cross entropy
Signed-off-by: Casper <casperbh.96@gmail.com>

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Signed-off-by: Casper <casperbh.96@gmail.com>

* fix comments
Signed-off-by: Casper <casperbh.96@gmail.com>

* fix: few more style issues
Signed-off-by: Casper <casperbh.96@gmail.com>

* fix: remove grad_output_stride (unnecessary)
Signed-off-by: Casper <casperbh.96@gmail.com>

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci



* fix: only backward was broken
Signed-off-by: Casper <casperbh.96@gmail.com>

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci



* Generalize cross entropy backward kernel to handle reduced and unreduced loss
Signed-off-by: Tim Moon <tmoon@nvidia.com>

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci



---------
Signed-off-by: Casper <casperbh.96@gmail.com>
Signed-off-by: Tim Moon <tmoon@nvidia.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Tim Moon <4406448+timmoon10@users.noreply.github.com>
Co-authored-by: Tim Moon <tmoon@nvidia.com>