[Wait for #2580] [ Mixed Precision ] Enable Mixed Precision #2581
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We will add Var32 Tensor if the Variable Weight is not Full precision (FP32). This eables the Weight Update with full precision and only Apply Gradient Process ueses this Tensor. Therefore, the lifespan of this tensor should be "ApplyGradient". . Modify TensorPool to generate Weigth considering Mixed Precsion. **Self evaluation:** 1. Build test: [X]Passed [ ]Failed [ ]Skipped 2. Run test: [X]Passed [ ]Failed [ ]Skipped Signed-off-by: jijoong.moon <[email protected]>
This pr create the variable fp32 tensor when we create the Weight and Optimizer Weight. . update the manager to create Weight with var32 tensor which requested to weight pool. . update the weight requests with Weight Spec and var, grad and var32 tensors which created already. . add clone Tensor with specific type in tensor.h Resolves: **Self evaluation:** 1. Build test: [X]Passed [ ]Failed [ ]Skipped 2. Run test: [X]Passed [ ]Failed [ ]Skipped Signed-off-by: jijoong.moon <[email protected]>
This PR enables the FP16 support for the layers below: . input layer . mse loss layer Resolves: **Self evaluation:** 1. Build test: [X]Passed [ ]Failed [ ]Skipped 2. Run test: [X]Passed [ ]Failed [ ]Skipped Signed-off-by: jijoong.moon <[email protected]>
This PR includes the mixed precision test case. . Input - FC - MSE : "batch_size=2", "model_tensor_type=FP16-FP16", "loss_scale=128" **Self evaluation:** 1. Build test: [X]Passed [ ]Failed [ ]Skipped 2. Run test: [X]Passed [ ]Failed [ ]Skipped Signed-off-by: jijoong.moon <[email protected]>
This commit modify apply gradient in optimizer. We do not need to save optimizer variables in weight type. Only Optimizer needs the optimizer variables and we should update the weight with full precision to maintain the accuracy. Therefore, remove the var32 tensors for optimizer variables. Resolves: **Self evaluation:** 1. Build test: [X]Passed [ ]Failed [ ]Skipped 2. Run test: [X]Passed [ ]Failed [ ]Skipped Signed-off-by: jijoong.moon <[email protected]>
This PR add is_NaN function to check if the tensor has NaN value. This is for the check NaN during mixed precision training. **Self evaluation:** 1. Build test: [X]Passed [ ]Failed [ ]Skipped 2. Run test: [X]Passed [ ]Failed [ ]Skipped Signed-off-by: jijoong.moon <[email protected]>
This PR add loss scale parameter in runcontext and use it to update mse loss. . Add Loss Scale Parameter in RunLayerContext Constructor . Add applyLossScale func to update return derivitive in Loss Layer . Change MSE Loss Layer to apply the loss scale to return derivitive **Self evaluation:** 1. Build test: [X]Passed [ ]Failed [ ]Skipped 2. Run test: [X]Passed [ ]Failed [ ]Skipped Signed-off-by: jijoong.moon <[email protected]>
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📝 TAOS-CI Version: 1.5.20200925. Thank you for submitting PR #2581. Please a submit 1commit/1PR (one commit per one PR) policy to get comments quickly from reviewers. Your PR must pass all verificiation processes of cibot before starting a review process from reviewers. If you are new member to join this project, please read manuals in documentation folder and wiki page. In order to monitor a progress status of your PR in more detail, visit http://ci.nnstreamer.ai/. |
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This PR enables the Mixed Precision Training. For now only FP16-FP32 is considered. Additional Test cases will be added. . add getSortedLayerIdx to set the graph order for fowarding. . change clip_weights to lazy_apply_weights to use both cases. . add fowarding_op to run forwarding from that layer which has a gradient with nan. . add while loop for re-run backwarding after reset the loss scale. . add setLossScale in RunLayerContext . add check the gradient if mixed precsion enable. **Self evaluation:** 1. Build test: [X]Passed [ ]Failed [ ]Skipped 2. Run test: [X]Passed [ ]Failed [ ]Skipped Signed-off-by: jijoong.moon <[email protected]>
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closed by #2663 |
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In this PR
This PR enables Mixed Precision Training. For now only FP16-FP32
is considered. Additional Test cases will be added.
. add getSortedLayerIdx to set the graph order for forwarding.
. change clip_weights to lazy_apply_weights to use both cases.
. add fowarding_op to run forwarding from that layer which has a
gradient with nan.
. add a while loop for re-run backwarding after resetting the loss scale.
. add setLossScale in RunLayerContext
. add check the gradient if mixed precision is enabled.
Self evaluation:
Signed-off-by: jijoong.moon [email protected]