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[CPU][RISCV64] Implement CPU Plugin JIT emitter for SoftPlus activation #33144

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[CPU][RISCV64] Implement CPU Plugin JIT emitter for SoftPlus activation #33144

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@Naseer-010 Naseer-010 commented Dec 7, 2025 •
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Details:

  • Implements JIT emitter for SoftPlus activation function (softplus(x) = ln(1 + exp(x))) on RISC-V64 architecture with RVV 1.0 support.

Tickets:

@Naseer-010
Declared jit_softplus_emitter class for SoftPlus operation
bf5b093
@Naseer-010
Add jit_softplus_emitter for SoftPlus operation
359b362 
Implemented jit_softplus_emitter for SoftPlus operation with support for RISCV64 architecture. Added methods for input count, auxiliary register counts, and emission of SoftPlus logic.
@Naseer-010
Refine softplus implementation for stability and accuracy
e59d93e 
Updated the softplus implementation for numerical stability and accuracy. Adjusted auxiliary vector counts and refined calculations for large and small input values.
@Naseer-010
Merge branch 'openvinotoolkit:master' into fearure/riscv_emmiter/soft…
c4ba973 
…plus
@Naseer-010
Merge branch 'openvinotoolkit:master' into fearure/riscv_emmiter/soft…
2daa0f1 
…plus
@Naseer-010
Merge branch 'openvinotoolkit:master' into fearure/riscv_emmiter/soft…
1710de0 
…plus
@Naseer-010
Add EltwiseSoftPlus support to Eltwise emitter
8e9fc33 
Registering the EltwiseSoftplus in the kernel
@Naseer-010
Merge branch 'openvinotoolkit:master' into fearure/riscv_emmiter/soft…
0616c92 
…plus
@Naseer-010
Add SoftPlus to activation type checks
d886e6c
@Naseer-010
Merge branch 'openvinotoolkit:master' into fearure/riscv_emmiter/soft…
6c38ae9 
…plus
@Naseer-010
Refactor SoftPlus implementation for clarity
141dde5 
Removed unnecessary verbose comments and formatted the code for easier understanding
@Naseer-010 Naseer-010 requested review from a team as code owners December 7, 2025 12:32
@github-actions github-actions bot added the category: CPU OpenVINO CPU plugin label Dec 7, 2025
@sys-openvino-ci sys-openvino-ci added the ExternalPR External contributor label Dec 7, 2025
@Naseer-010 Naseer-010 changed the title [CPU][RISCV64] Implement JIT emitter for SoftPlus activation #30244 [CPU][RISCV64] Implement CPU Plugin JIT emitter for SoftPlus activation Dec 7, 2025
@maxnick
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maxnick commented Dec 8, 2025

@aobolensk , could you please review?

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@Naseer-010 @maxnick @aobolensk @sys-openvino-ci