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Per-function JIT cache to avoid redundant recompilation #94
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,2 +1,31 @@ | ||
| from libc.stdlib cimport malloc | ||
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| cdef class PtrContainer: | ||
| pass | ||
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| cpdef allocate(self, int n_res, int n_bcs, int n_jac, int n_bd_res, int n_bd_jac): | ||
| """Allocate function pointer arrays of the given sizes.""" | ||
| self.fns_residual = <PetscDSResidualFn*> malloc(n_res * sizeof(PetscDSResidualFn)) | ||
| self.fns_bcs = <PetscDSResidualFn*> malloc(n_bcs * sizeof(PetscDSResidualFn)) | ||
| self.fns_jacobian = <PetscDSJacobianFn*> malloc(n_jac * sizeof(PetscDSJacobianFn)) | ||
| self.fns_bd_residual = <PetscDSBdResidualFn*> malloc(n_bd_res * sizeof(PetscDSBdResidualFn)) | ||
| self.fns_bd_jacobian = <PetscDSBdJacobianFn*> malloc(n_bd_jac * sizeof(PetscDSBdJacobianFn)) | ||
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| cpdef copy_residual_from(self, int dst, PtrContainer src, int src_idx): | ||
| """Copy a residual function pointer from another container.""" | ||
| self.fns_residual[dst] = src.fns_residual[src_idx] | ||
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| cpdef copy_bcs_from(self, int dst, PtrContainer src, int src_idx): | ||
| """Copy a BC function pointer from another container.""" | ||
| self.fns_bcs[dst] = src.fns_bcs[src_idx] | ||
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| cpdef copy_jacobian_from(self, int dst, PtrContainer src, int src_idx): | ||
| """Copy a Jacobian function pointer from another container.""" | ||
| self.fns_jacobian[dst] = src.fns_jacobian[src_idx] | ||
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| cpdef copy_bd_residual_from(self, int dst, PtrContainer src, int src_idx): | ||
| """Copy a boundary residual function pointer from another container.""" | ||
| self.fns_bd_residual[dst] = src.fns_bd_residual[src_idx] | ||
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| cpdef copy_bd_jacobian_from(self, int dst, PtrContainer src, int src_idx): | ||
| """Copy a boundary Jacobian function pointer from another container.""" | ||
| self.fns_bd_jacobian[dst] = src.fns_bd_jacobian[src_idx] | ||
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PtrContainer.allocate() uses malloc() for several pointer arrays but PtrContainer has no dealloc (or equivalent) to free them. With the new per-function assembly path creating a fresh PtrContainer frequently, this becomes an unbounded native-memory leak. Add free() calls in a dealloc method (and consider freeing/replacing existing pointers inside allocate() when called more than once).