Actual source code: cudavecimpl.h
petsc-3.13.2 2020-06-02
4: #include <petscvec.h>
5: #include <petsccublas.h>
6: #include <petsc/private/vecimpl.h>
8: #include <cublas_v2.h>
10: typedef struct {
11: PetscScalar *GPUarray; /* this always holds the GPU data */
12: PetscScalar *GPUarray_allocated; /* if the array was allocated by PETSc this is its pointer */
13: cudaStream_t stream; /* A stream for doing asynchronous data transfers */
14: } Vec_CUDA;
16: #include <cuda_runtime.h>
18: PETSC_INTERN PetscErrorCode VecDotNorm2_SeqCUDA(Vec,Vec,PetscScalar*, PetscScalar*);
19: PETSC_INTERN PetscErrorCode VecPointwiseDivide_SeqCUDA(Vec,Vec,Vec);
20: PETSC_INTERN PetscErrorCode VecWAXPY_SeqCUDA(Vec,PetscScalar,Vec,Vec);
21: PETSC_INTERN PetscErrorCode VecMDot_SeqCUDA(Vec,PetscInt,const Vec[],PetscScalar*);
22: PETSC_EXTERN PetscErrorCode VecSet_SeqCUDA(Vec,PetscScalar);
23: PETSC_INTERN PetscErrorCode VecMAXPY_SeqCUDA(Vec,PetscInt,const PetscScalar*,Vec*);
24: PETSC_INTERN PetscErrorCode VecAXPBYPCZ_SeqCUDA(Vec,PetscScalar,PetscScalar,PetscScalar,Vec,Vec);
25: PETSC_INTERN PetscErrorCode VecPointwiseMult_SeqCUDA(Vec,Vec,Vec);
26: PETSC_INTERN PetscErrorCode VecPlaceArray_SeqCUDA(Vec,const PetscScalar*);
27: PETSC_INTERN PetscErrorCode VecResetArray_SeqCUDA(Vec);
28: PETSC_INTERN PetscErrorCode VecReplaceArray_SeqCUDA(Vec,const PetscScalar*);
29: PETSC_INTERN PetscErrorCode VecDot_SeqCUDA(Vec,Vec,PetscScalar*);
30: PETSC_INTERN PetscErrorCode VecTDot_SeqCUDA(Vec,Vec,PetscScalar*);
31: PETSC_INTERN PetscErrorCode VecScale_SeqCUDA(Vec,PetscScalar);
32: PETSC_EXTERN PetscErrorCode VecCopy_SeqCUDA(Vec,Vec);
33: PETSC_INTERN PetscErrorCode VecSwap_SeqCUDA(Vec,Vec);
34: PETSC_EXTERN PetscErrorCode VecAXPY_SeqCUDA(Vec,PetscScalar,Vec);
35: PETSC_INTERN PetscErrorCode VecAXPBY_SeqCUDA(Vec,PetscScalar,PetscScalar,Vec);
36: PETSC_INTERN PetscErrorCode VecDuplicate_SeqCUDA(Vec,Vec*);
37: PETSC_INTERN PetscErrorCode VecConjugate_SeqCUDA(Vec xin);
38: PETSC_INTERN PetscErrorCode VecNorm_SeqCUDA(Vec,NormType,PetscReal*);
39: PETSC_INTERN PetscErrorCode VecCUDACopyToGPU(Vec);
40: PETSC_INTERN PetscErrorCode VecCUDAAllocateCheck(Vec);
41: PETSC_EXTERN PetscErrorCode VecCreate_SeqCUDA(Vec);
42: PETSC_INTERN PetscErrorCode VecCreate_SeqCUDA_Private(Vec,const PetscScalar*);
43: PETSC_INTERN PetscErrorCode VecCreate_MPICUDA(Vec);
44: PETSC_INTERN PetscErrorCode VecCreate_MPICUDA_Private(Vec,PetscBool,PetscInt,const PetscScalar*);
45: PETSC_INTERN PetscErrorCode VecCreate_CUDA(Vec);
46: PETSC_INTERN PetscErrorCode VecDestroy_SeqCUDA(Vec);
47: PETSC_INTERN PetscErrorCode VecDestroy_MPICUDA(Vec);
48: PETSC_INTERN PetscErrorCode VecAYPX_SeqCUDA(Vec,PetscScalar,Vec);
49: PETSC_INTERN PetscErrorCode VecSetRandom_SeqCUDA(Vec,PetscRandom);
50: PETSC_INTERN PetscErrorCode VecGetLocalVector_SeqCUDA(Vec,Vec);
51: PETSC_INTERN PetscErrorCode VecRestoreLocalVector_SeqCUDA(Vec,Vec);
52: PETSC_INTERN PetscErrorCode VecGetArrayWrite_SeqCUDA(Vec,PetscScalar**);
53: PETSC_INTERN PetscErrorCode VecCopy_SeqCUDA_Private(Vec xin,Vec yin);
54: PETSC_INTERN PetscErrorCode VecSetRandom_SeqCUDA_Private(Vec xin,PetscRandom r);
55: PETSC_INTERN PetscErrorCode VecDestroy_SeqCUDA_Private(Vec v);
56: PETSC_INTERN PetscErrorCode VecResetArray_SeqCUDA_Private(Vec vin);
57: PETSC_INTERN PetscErrorCode VecCUDACopyToGPU_Public(Vec);
58: PETSC_INTERN PetscErrorCode VecCUDAAllocateCheck_Public(Vec);
59: PETSC_INTERN PetscErrorCode VecCUDACopyToGPUSome(Vec,PetscCUDAIndices,ScatterMode);
60: PETSC_INTERN PetscErrorCode VecCUDACopyFromGPUSome(Vec,PetscCUDAIndices,ScatterMode);
62: PETSC_INTERN PetscErrorCode VecScatterCUDAIndicesCreate_PtoP(PetscInt, PetscInt*,PetscInt, PetscInt*,PetscCUDAIndices*);
63: PETSC_INTERN PetscErrorCode VecScatterCUDAIndicesCreate_StoS(PetscInt,PetscInt,PetscInt,PetscInt,PetscInt,PetscInt*,PetscInt*,PetscCUDAIndices*);
64: PETSC_INTERN PetscErrorCode VecScatterCUDAIndicesDestroy(PetscCUDAIndices*);
65: PETSC_INTERN PetscErrorCode VecScatterCUDA_StoS(Vec,Vec,PetscCUDAIndices,InsertMode,ScatterMode);
67: typedef enum {VEC_SCATTER_CUDA_STOS, VEC_SCATTER_CUDA_PTOP} VecCUDAScatterType;
68: typedef enum {VEC_SCATTER_CUDA_GENERAL, VEC_SCATTER_CUDA_STRIDED} VecCUDASequentialScatterMode;
70: struct _p_VecScatterCUDAIndices_PtoP {
71: PetscInt ns;
72: PetscInt sendLowestIndex;
73: PetscInt nr;
74: PetscInt recvLowestIndex;
75: };
77: struct _p_VecScatterCUDAIndices_StoS {
78: /* from indices data */
79: PetscInt *fslots;
80: PetscInt fromFirst;
81: PetscInt fromStep;
82: VecCUDASequentialScatterMode fromMode;
84: /* to indices data */
85: PetscInt *tslots;
86: PetscInt toFirst;
87: PetscInt toStep;
88: VecCUDASequentialScatterMode toMode;
90: PetscInt n;
91: PetscInt MAX_BLOCKS;
92: PetscInt MAX_CORESIDENT_THREADS;
93: cudaStream_t stream;
94: };
96: struct _p_PetscCUDAIndices {
97: void * scatter;
98: VecCUDAScatterType scatterType;
99: };
101: /* complex single */
102: #if defined(PETSC_USE_COMPLEX)
103: #if defined(PETSC_USE_REAL_SINGLE)
104: #define cublasXaxpy(a,b,c,d,e,f,g) cublasCaxpy((a),(b),(cuComplex*)(c),(cuComplex*)(d),(e),(cuComplex*)(f),(g))
105: #define cublasXscal(a,b,c,d,e) cublasCscal((a),(b),(cuComplex*)(c),(cuComplex*)(d),(e))
106: #define cublasXdotu(a,b,c,d,e,f,g) cublasCdotu((a),(b),(cuComplex*)(c),(d),(cuComplex*)(e),(f),(cuComplex*)(g))
107: #define cublasXdot(a,b,c,d,e,f,g) cublasCdotc((a),(b),(cuComplex*)(c),(d),(cuComplex*)(e),(f),(cuComplex*)(g))
108: #define cublasXswap(a,b,c,d,e,f) cublasCswap((a),(b),(cuComplex*)(c),(d),(cuComplex*)(e),(f))
109: #define cublasXnrm2(a,b,c,d,e) cublasScnrm2((a),(b),(cuComplex*)(c),(d),(e))
110: #define cublasIXamax(a,b,c,d,e) cublasIcamax((a),(b),(cuComplex*)(c),(d),(e))
111: #define cublasXasum(a,b,c,d,e) cublasScasum((a),(b),(cuComplex*)(c),(d),(e))
112: #define cublasXgemv(a,b,c,d,e,f,g,h,i,j,k,l) cublasCgemv((a),(b),(c),(d),(cuComplex*)(e),(cuComplex*)(f),(g),(cuComplex*)(h),(i),(cuComplex*)(j),(cuComplex*)(k),(l))
113: #define cublasXgemm(a,b,c,d,e,f,g,h,i,j,k,l,m,n) cublasCgemm((a),(b),(c),(d),(e),(f),(cuComplex*)(g),(cuComplex*)(h),(i),(cuComplex*)(j),(k),(cuComplex*)(l),(cuComplex*)(m),(n))
114: #else /* complex double */
115: #define cublasXaxpy(a,b,c,d,e,f,g) cublasZaxpy((a),(b),(cuDoubleComplex*)(c),(cuDoubleComplex*)(d),(e),(cuDoubleComplex*)(f),(g))
116: #define cublasXscal(a,b,c,d,e) cublasZscal((a),(b),(cuDoubleComplex*)(c),(cuDoubleComplex*)(d),(e))
117: #define cublasXdotu(a,b,c,d,e,f,g) cublasZdotu((a),(b),(cuDoubleComplex*)(c),(d),(cuDoubleComplex*)(e),(f),(cuDoubleComplex*)(g))
118: #define cublasXdot(a,b,c,d,e,f,g) cublasZdotc((a),(b),(cuDoubleComplex*)(c),(d),(cuDoubleComplex*)(e),(f),(cuDoubleComplex*)(g))
119: #define cublasXswap(a,b,c,d,e,f) cublasZswap((a),(b),(cuDoubleComplex*)(c),(d),(cuDoubleComplex*)(e),(f))
120: #define cublasXnrm2(a,b,c,d,e) cublasDznrm2((a),(b),(cuDoubleComplex*)(c),(d),(e))
121: #define cublasIXamax(a,b,c,d,e) cublasIzamax((a),(b),(cuDoubleComplex*)(c),(d),(e))
122: #define cublasXasum(a,b,c,d,e) cublasDzasum((a),(b),(cuDoubleComplex*)(c),(d),(e))
123: #define cublasXgemv(a,b,c,d,e,f,g,h,i,j,k,l) cublasZgemv((a),(b),(c),(d),(cuDoubleComplex*)(e),(cuDoubleComplex*)(f),(g),(cuDoubleComplex*)(h),(i),(cuDoubleComplex*)(j),(cuDoubleComplex*)(k),(l))
124: #define cublasXgemm(a,b,c,d,e,f,g,h,i,j,k,l,m,n) cublasZgemm((a),(b),(c),(d),(e),(f),(cuDoubleComplex*)(g),(cuDoubleComplex*)(h),(i),(cuDoubleComplex*)(j),(k),(cuDoubleComplex*)(l),(cuDoubleComplex*)(m),(n))
125: #endif
126: #else /* real single */
127: #if defined(PETSC_USE_REAL_SINGLE)
128: #define cublasXaxpy cublasSaxpy
129: #define cublasXscal cublasSscal
130: #define cublasXdotu cublasSdot
131: #define cublasXdot cublasSdot
132: #define cublasXswap cublasSswap
133: #define cublasXnrm2 cublasSnrm2
134: #define cublasIXamax cublasIsamax
135: #define cublasXasum cublasSasum
136: #define cublasXgemv cublasSgemv
137: #define cublasXgemm cublasSgemm
138: #else /* real double */
139: #define cublasXaxpy cublasDaxpy
140: #define cublasXscal cublasDscal
141: #define cublasXdotu cublasDdot
142: #define cublasXdot cublasDdot
143: #define cublasXswap cublasDswap
144: #define cublasXnrm2 cublasDnrm2
145: #define cublasIXamax cublasIdamax
146: #define cublasXasum cublasDasum
147: #define cublasXgemv cublasDgemv
148: #define cublasXgemm cublasDgemm
149: #endif
150: #endif
152: #endif