Added OpenMP

Add OpenMP to some operator implementations:

• AvgPooling
• BatchNorm
• ConvDepthWise
• Conv
• Fc
• GlobalAveragePooli‎ng
• MatMul
• MaxPooling
• Softmax

For now, OpenMP is automatically enabled if present on the system.

Example of execution time

On MobileNetv1, in debug.

Without OpenMP

With OpenMP

changed milestone to %aidge v0.6.0

added EnhancementPerformance ⚡️ label

assigned to @olivierbichler

Please @olivierbichler can you list the operator that will benefit from this?

Also it would be nice to mark on the MR how to activate or deactivate openmp to enhance the redaction of the changelog.

marked this merge request as draft

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• 078ed5fb - Fixed Windows build

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• 24aaa15a - Optimized Fc Impl

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changed the description

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• d06526cb - Fixed wrong offsets

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• 2b8ba619 - Added OpenMP to MatMul

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changed the description

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• fe763238 - Fixed Windows build

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added StatusWork in Progress label

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• 8462f165 - Fix backward not being run in unit test

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mentioned in issue #52 (closed)

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• 65238a35 - Reduced OpenMP thresholds

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