【Hackathon 7th No.26】add lu_solve api for paddle
#70078
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PR Category
Operator Mechanism
PR Types
New features
Description
RFC: api_design_for_lu_solve.md
This pull request introduces a new feature to support LU solve operations in both CPU and GPU contexts. The most important changes include adding new kernel functions for LU solve and its gradient, updating symbolic shape inference, and integrating new LAPACK and cuSOLVER routines.
New kernel functions:
paddle/phi/kernels/cpu/lu_solve_kernel.cc: AddedLuSolveKernelfunction to perform LU solve operations on CPU.paddle/phi/kernels/cpu/lu_solve_grad_kernel.cc: AddedLuSolveGradKernelfunction to compute gradients for LU solve operations on CPU.paddle/phi/kernels/gpu/lu_solve_kernel.cu: AddedLuSolveKernelfunction to perform LU solve operations on GPU using cuSOLVER.paddle/phi/kernels/gpu/lu_solve_grad_kernel.cu: AddedLuSolveGradKernelfunction to compute gradients for LU solve operations on GPU.Symbolic shape inference:
paddle/fluid/pir/dialect/operator/interface/infer_symbolic_shape/multiary_infer_sym.cc: AddedLuSolveOpInferSymbolicShapefunction to infer the symbolic shape for LU solve operations.paddle/fluid/pir/dialect/operator/interface/infer_symbolic_shape/multiary_infer_sym.h: DeclaredLuSolvein the symbolic shape inference interface.Integration of new routines:
paddle/phi/backends/dynload/cusolver.h: Added dynamic loading forcusolverDnSgetrsandcusolverDnDgetrsroutines.paddle/phi/backends/dynload/lapack.h: Added declarations and macro definitions forsgetrs_anddgetrs_LAPACK routines. [1] [2]InferMeta function:
paddle/phi/infermeta/ternary.cc: AddedLuSolveInferMetafunction to infer metadata for LU solve operations.paddle/phi/infermeta/ternary.h: DeclaredLuSolveInferMetafunction.