Actual source code: cudavecimpl.h
petsc-3.13.6 2020-09-29
4: #include <petscvec.h>
5: #include <petsccublas.h>
6: #include <petsc/private/vecimpl.h>
8: typedef struct {
9: PetscScalar *GPUarray; /* this always holds the GPU data */
10: PetscScalar *GPUarray_allocated; /* if the array was allocated by PETSc this is its pointer */
11: cudaStream_t stream; /* A stream for doing asynchronous data transfers */
12: } Vec_CUDA;
14: PETSC_INTERN PetscErrorCode VecDotNorm2_SeqCUDA(Vec,Vec,PetscScalar*, PetscScalar*);
15: PETSC_INTERN PetscErrorCode VecPointwiseDivide_SeqCUDA(Vec,Vec,Vec);
16: PETSC_INTERN PetscErrorCode VecWAXPY_SeqCUDA(Vec,PetscScalar,Vec,Vec);
17: PETSC_INTERN PetscErrorCode VecMDot_SeqCUDA(Vec,PetscInt,const Vec[],PetscScalar*);
18: PETSC_EXTERN PetscErrorCode VecSet_SeqCUDA(Vec,PetscScalar);
19: PETSC_INTERN PetscErrorCode VecMAXPY_SeqCUDA(Vec,PetscInt,const PetscScalar*,Vec*);
20: PETSC_INTERN PetscErrorCode VecAXPBYPCZ_SeqCUDA(Vec,PetscScalar,PetscScalar,PetscScalar,Vec,Vec);
21: PETSC_INTERN PetscErrorCode VecPointwiseMult_SeqCUDA(Vec,Vec,Vec);
22: PETSC_INTERN PetscErrorCode VecPlaceArray_SeqCUDA(Vec,const PetscScalar*);
23: PETSC_INTERN PetscErrorCode VecResetArray_SeqCUDA(Vec);
24: PETSC_INTERN PetscErrorCode VecReplaceArray_SeqCUDA(Vec,const PetscScalar*);
25: PETSC_INTERN PetscErrorCode VecDot_SeqCUDA(Vec,Vec,PetscScalar*);
26: PETSC_INTERN PetscErrorCode VecTDot_SeqCUDA(Vec,Vec,PetscScalar*);
27: PETSC_INTERN PetscErrorCode VecScale_SeqCUDA(Vec,PetscScalar);
28: PETSC_EXTERN PetscErrorCode VecCopy_SeqCUDA(Vec,Vec);
29: PETSC_INTERN PetscErrorCode VecSwap_SeqCUDA(Vec,Vec);
30: PETSC_EXTERN PetscErrorCode VecAXPY_SeqCUDA(Vec,PetscScalar,Vec);
31: PETSC_INTERN PetscErrorCode VecAXPBY_SeqCUDA(Vec,PetscScalar,PetscScalar,Vec);
32: PETSC_INTERN PetscErrorCode VecDuplicate_SeqCUDA(Vec,Vec*);
33: PETSC_INTERN PetscErrorCode VecConjugate_SeqCUDA(Vec xin);
34: PETSC_INTERN PetscErrorCode VecNorm_SeqCUDA(Vec,NormType,PetscReal*);
35: PETSC_INTERN PetscErrorCode VecCUDACopyToGPU(Vec);
36: PETSC_INTERN PetscErrorCode VecCUDAAllocateCheck(Vec);
37: PETSC_EXTERN PetscErrorCode VecCreate_SeqCUDA(Vec);
38: PETSC_INTERN PetscErrorCode VecCreate_SeqCUDA_Private(Vec,const PetscScalar*);
39: PETSC_INTERN PetscErrorCode VecCreate_MPICUDA(Vec);
40: PETSC_INTERN PetscErrorCode VecCreate_MPICUDA_Private(Vec,PetscBool,PetscInt,const PetscScalar*);
41: PETSC_INTERN PetscErrorCode VecCreate_CUDA(Vec);
42: PETSC_INTERN PetscErrorCode VecDestroy_SeqCUDA(Vec);
43: PETSC_INTERN PetscErrorCode VecDestroy_MPICUDA(Vec);
44: PETSC_INTERN PetscErrorCode VecAYPX_SeqCUDA(Vec,PetscScalar,Vec);
45: PETSC_INTERN PetscErrorCode VecSetRandom_SeqCUDA(Vec,PetscRandom);
46: PETSC_INTERN PetscErrorCode VecGetLocalVector_SeqCUDA(Vec,Vec);
47: PETSC_INTERN PetscErrorCode VecRestoreLocalVector_SeqCUDA(Vec,Vec);
48: PETSC_INTERN PetscErrorCode VecGetArrayWrite_SeqCUDA(Vec,PetscScalar**);
49: PETSC_INTERN PetscErrorCode VecCopy_SeqCUDA_Private(Vec xin,Vec yin);
50: PETSC_INTERN PetscErrorCode VecSetRandom_SeqCUDA_Private(Vec xin,PetscRandom r);
51: PETSC_INTERN PetscErrorCode VecDestroy_SeqCUDA_Private(Vec v);
52: PETSC_INTERN PetscErrorCode VecResetArray_SeqCUDA_Private(Vec vin);
53: PETSC_INTERN PetscErrorCode VecCUDACopyToGPU_Public(Vec);
54: PETSC_INTERN PetscErrorCode VecCUDAAllocateCheck_Public(Vec);
55: PETSC_INTERN PetscErrorCode VecCUDACopyToGPUSome(Vec,PetscCUDAIndices,ScatterMode);
56: PETSC_INTERN PetscErrorCode VecCUDACopyFromGPUSome(Vec,PetscCUDAIndices,ScatterMode);
58: PETSC_INTERN PetscErrorCode VecScatterCUDAIndicesCreate_PtoP(PetscInt, PetscInt*,PetscInt, PetscInt*,PetscCUDAIndices*);
59: PETSC_INTERN PetscErrorCode VecScatterCUDAIndicesCreate_StoS(PetscInt,PetscInt,PetscInt,PetscInt,PetscInt,PetscInt*,PetscInt*,PetscCUDAIndices*);
60: PETSC_INTERN PetscErrorCode VecScatterCUDAIndicesDestroy(PetscCUDAIndices*);
61: PETSC_INTERN PetscErrorCode VecScatterCUDA_StoS(Vec,Vec,PetscCUDAIndices,InsertMode,ScatterMode);
63: typedef enum {VEC_SCATTER_CUDA_STOS, VEC_SCATTER_CUDA_PTOP} VecCUDAScatterType;
64: typedef enum {VEC_SCATTER_CUDA_GENERAL, VEC_SCATTER_CUDA_STRIDED} VecCUDASequentialScatterMode;
66: struct _p_VecScatterCUDAIndices_PtoP {
67: PetscInt ns;
68: PetscInt sendLowestIndex;
69: PetscInt nr;
70: PetscInt recvLowestIndex;
71: };
73: struct _p_VecScatterCUDAIndices_StoS {
74: /* from indices data */
75: PetscInt *fslots;
76: PetscInt fromFirst;
77: PetscInt fromStep;
78: VecCUDASequentialScatterMode fromMode;
80: /* to indices data */
81: PetscInt *tslots;
82: PetscInt toFirst;
83: PetscInt toStep;
84: VecCUDASequentialScatterMode toMode;
86: PetscInt n;
87: PetscInt MAX_BLOCKS;
88: PetscInt MAX_CORESIDENT_THREADS;
89: cudaStream_t stream;
90: };
92: struct _p_PetscCUDAIndices {
93: void * scatter;
94: VecCUDAScatterType scatterType;
95: };
97: /* complex single */
98: #if defined(PETSC_USE_COMPLEX)
99: #if defined(PETSC_USE_REAL_SINGLE)
100: #define cublasXaxpy(a,b,c,d,e,f,g) cublasCaxpy((a),(b),(cuComplex*)(c),(cuComplex*)(d),(e),(cuComplex*)(f),(g))
101: #define cublasXscal(a,b,c,d,e) cublasCscal((a),(b),(cuComplex*)(c),(cuComplex*)(d),(e))
102: #define cublasXdotu(a,b,c,d,e,f,g) cublasCdotu((a),(b),(cuComplex*)(c),(d),(cuComplex*)(e),(f),(cuComplex*)(g))
103: #define cublasXdot(a,b,c,d,e,f,g) cublasCdotc((a),(b),(cuComplex*)(c),(d),(cuComplex*)(e),(f),(cuComplex*)(g))
104: #define cublasXswap(a,b,c,d,e,f) cublasCswap((a),(b),(cuComplex*)(c),(d),(cuComplex*)(e),(f))
105: #define cublasXnrm2(a,b,c,d,e) cublasScnrm2((a),(b),(cuComplex*)(c),(d),(e))
106: #define cublasIXamax(a,b,c,d,e) cublasIcamax((a),(b),(cuComplex*)(c),(d),(e))
107: #define cublasXasum(a,b,c,d,e) cublasScasum((a),(b),(cuComplex*)(c),(d),(e))
108: #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))
109: #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))
110: #else /* complex double */
111: #define cublasXaxpy(a,b,c,d,e,f,g) cublasZaxpy((a),(b),(cuDoubleComplex*)(c),(cuDoubleComplex*)(d),(e),(cuDoubleComplex*)(f),(g))
112: #define cublasXscal(a,b,c,d,e) cublasZscal((a),(b),(cuDoubleComplex*)(c),(cuDoubleComplex*)(d),(e))
113: #define cublasXdotu(a,b,c,d,e,f,g) cublasZdotu((a),(b),(cuDoubleComplex*)(c),(d),(cuDoubleComplex*)(e),(f),(cuDoubleComplex*)(g))
114: #define cublasXdot(a,b,c,d,e,f,g) cublasZdotc((a),(b),(cuDoubleComplex*)(c),(d),(cuDoubleComplex*)(e),(f),(cuDoubleComplex*)(g))
115: #define cublasXswap(a,b,c,d,e,f) cublasZswap((a),(b),(cuDoubleComplex*)(c),(d),(cuDoubleComplex*)(e),(f))
116: #define cublasXnrm2(a,b,c,d,e) cublasDznrm2((a),(b),(cuDoubleComplex*)(c),(d),(e))
117: #define cublasIXamax(a,b,c,d,e) cublasIzamax((a),(b),(cuDoubleComplex*)(c),(d),(e))
118: #define cublasXasum(a,b,c,d,e) cublasDzasum((a),(b),(cuDoubleComplex*)(c),(d),(e))
119: #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))
120: #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))
121: #endif
122: #else /* real single */
123: #if defined(PETSC_USE_REAL_SINGLE)
124: #define cublasXaxpy cublasSaxpy
125: #define cublasXscal cublasSscal
126: #define cublasXdotu cublasSdot
127: #define cublasXdot cublasSdot
128: #define cublasXswap cublasSswap
129: #define cublasXnrm2 cublasSnrm2
130: #define cublasIXamax cublasIsamax
131: #define cublasXasum cublasSasum
132: #define cublasXgemv cublasSgemv
133: #define cublasXgemm cublasSgemm
134: #else /* real double */
135: #define cublasXaxpy cublasDaxpy
136: #define cublasXscal cublasDscal
137: #define cublasXdotu cublasDdot
138: #define cublasXdot cublasDdot
139: #define cublasXswap cublasDswap
140: #define cublasXnrm2 cublasDnrm2
141: #define cublasIXamax cublasIdamax
142: #define cublasXasum cublasDasum
143: #define cublasXgemv cublasDgemv
144: #define cublasXgemm cublasDgemm
145: #endif
146: #endif
148: #endif