[GPU] Calculate strides for metal tensors

[xta0]

Stack from ghstack:

• [MacOS] Add unit tests for Metal ops #50312 [MacOS] Add unit tests for Metal ops
• [GPU] Clean up the operator tests #50311 [GPU] Clean up the operator tests
• [GPU] Fix the broken strides value for 2d transpose #50310 [GPU] Fix the broken strides value for 2d transpose
• [GPU] Calculate strides for metal tensors #50309 [GPU] Calculate strides for metal tensors

Previously, in order to unblock the dogfooding, we did some hacks to calculate the strides for the output tensor. Now it's time to fix that.

Differential Revision: D25821766

[facebook-github-bot]

💊 CI failures summary and remediations

As of commit 63e740f (more details on the Dr. CI page):

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• 3/3 failures introduced in this PR

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🕵️ 3 new failures recognized by patterns

The following CI failures do not appear to be due to upstream breakages:

pytorch_xla_linux_bionic_py3_6_clang9_build (1/3)

Step: "(Optional) Merge target branch" (full log | diagnosis details | 🔁 rerun)

Automatic merge failed; fix conflicts and then commit the result.

Auto-merging test/backward_compatibility/check_backward_compatibility.py
Auto-merging mypy.ini
Auto-merging aten/src/ATen/native/vulkan/ops/Pool.cpp
CONFLICT (content): Merge conflict in aten/src/ATen/native/vulkan/ops/Pool.cpp
Auto-merging aten/src/ATen/native/vulkan/ops/Mm.cpp
CONFLICT (content): Merge conflict in aten/src/ATen/native/vulkan/ops/Mm.cpp
Auto-merging aten/src/ATen/native/vulkan/ops/Convolution.cpp
CONFLICT (content): Merge conflict in aten/src/ATen/native/vulkan/ops/Convolution.cpp
Auto-merging aten/src/ATen/native/native_functions.yaml
Auto-merging aten/src/ATen/core/ivalue_inl.h
Automatic merge failed; fix conflicts and then commit the result.


Exited with code exit status 1

pytorch_linux_xenial_py3_6_gcc5_4_build (2/3)

Step: "(Optional) Merge target branch" (full log | diagnosis details | 🔁 rerun)

Automatic merge failed; fix conflicts and then commit the result.

Auto-merging test/backward_compatibility/check_backward_compatibility.py
Auto-merging mypy.ini
Auto-merging aten/src/ATen/native/vulkan/ops/Pool.cpp
CONFLICT (content): Merge conflict in aten/src/ATen/native/vulkan/ops/Pool.cpp
Auto-merging aten/src/ATen/native/vulkan/ops/Mm.cpp
CONFLICT (content): Merge conflict in aten/src/ATen/native/vulkan/ops/Mm.cpp
Auto-merging aten/src/ATen/native/vulkan/ops/Convolution.cpp
CONFLICT (content): Merge conflict in aten/src/ATen/native/vulkan/ops/Convolution.cpp
Auto-merging aten/src/ATen/native/native_functions.yaml
Auto-merging aten/src/ATen/core/ivalue_inl.h
Automatic merge failed; fix conflicts and then commit the result.


Exited with code exit status 1

pytorch_linux_xenial_cuda9_2_cudnn7_py3_gcc5_4_build (3/3)

Step: "(Optional) Merge target branch" (full log | diagnosis details | 🔁 rerun)

Automatic merge failed; fix conflicts and then commit the result.

Auto-merging test/backward_compatibility/check_backward_compatibility.py
Auto-merging mypy.ini
Auto-merging aten/src/ATen/native/vulkan/ops/Pool.cpp
CONFLICT (content): Merge conflict in aten/src/ATen/native/vulkan/ops/Pool.cpp
Auto-merging aten/src/ATen/native/vulkan/ops/Mm.cpp
CONFLICT (content): Merge conflict in aten/src/ATen/native/vulkan/ops/Mm.cpp
Auto-merging aten/src/ATen/native/vulkan/ops/Convolution.cpp
CONFLICT (content): Merge conflict in aten/src/ATen/native/vulkan/ops/Convolution.cpp
Auto-merging aten/src/ATen/native/native_functions.yaml
Auto-merging aten/src/ATen/core/ivalue_inl.h
Automatic merge failed; fix conflicts and then commit the result.


Exited with code exit status 1

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[facebook-github-bot]

This pull request has been merged in ba83aea.