Actual source code: cudavecimpl.h
petsc-3.14.6 2021-03-30
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 VecCUDAGetArrays_Private(Vec,const PetscScalar**,const PetscScalar**,PetscOffloadMask*);
15: PETSC_INTERN PetscErrorCode VecDotNorm2_SeqCUDA(Vec,Vec,PetscScalar*, PetscScalar*);
16: PETSC_INTERN PetscErrorCode VecPointwiseDivide_SeqCUDA(Vec,Vec,Vec);
17: PETSC_INTERN PetscErrorCode VecWAXPY_SeqCUDA(Vec,PetscScalar,Vec,Vec);
18: PETSC_INTERN PetscErrorCode VecMDot_SeqCUDA(Vec,PetscInt,const Vec[],PetscScalar*);
19: PETSC_EXTERN PetscErrorCode VecSet_SeqCUDA(Vec,PetscScalar);
20: PETSC_INTERN PetscErrorCode VecMAXPY_SeqCUDA(Vec,PetscInt,const PetscScalar*,Vec*);
21: PETSC_INTERN PetscErrorCode VecAXPBYPCZ_SeqCUDA(Vec,PetscScalar,PetscScalar,PetscScalar,Vec,Vec);
22: PETSC_INTERN PetscErrorCode VecPointwiseMult_SeqCUDA(Vec,Vec,Vec);
23: PETSC_INTERN PetscErrorCode VecPlaceArray_SeqCUDA(Vec,const PetscScalar*);
24: PETSC_INTERN PetscErrorCode VecResetArray_SeqCUDA(Vec);
25: PETSC_INTERN PetscErrorCode VecReplaceArray_SeqCUDA(Vec,const PetscScalar*);
26: PETSC_INTERN PetscErrorCode VecDot_SeqCUDA(Vec,Vec,PetscScalar*);
27: PETSC_INTERN PetscErrorCode VecTDot_SeqCUDA(Vec,Vec,PetscScalar*);
28: PETSC_INTERN PetscErrorCode VecScale_SeqCUDA(Vec,PetscScalar);
29: PETSC_EXTERN PetscErrorCode VecCopy_SeqCUDA(Vec,Vec);
30: PETSC_INTERN PetscErrorCode VecSwap_SeqCUDA(Vec,Vec);
31: PETSC_EXTERN PetscErrorCode VecAXPY_SeqCUDA(Vec,PetscScalar,Vec);
32: PETSC_INTERN PetscErrorCode VecAXPBY_SeqCUDA(Vec,PetscScalar,PetscScalar,Vec);
33: PETSC_INTERN PetscErrorCode VecDuplicate_SeqCUDA(Vec,Vec*);
34: PETSC_INTERN PetscErrorCode VecConjugate_SeqCUDA(Vec xin);
35: PETSC_INTERN PetscErrorCode VecNorm_SeqCUDA(Vec,NormType,PetscReal*);
36: PETSC_INTERN PetscErrorCode VecCUDACopyToGPU(Vec);
37: PETSC_INTERN PetscErrorCode VecCUDAAllocateCheck(Vec);
38: PETSC_EXTERN PetscErrorCode VecCreate_SeqCUDA(Vec);
39: PETSC_INTERN PetscErrorCode VecCreate_SeqCUDA_Private(Vec,const PetscScalar*);
40: PETSC_INTERN PetscErrorCode VecCreate_MPICUDA(Vec);
41: PETSC_INTERN PetscErrorCode VecCreate_MPICUDA_Private(Vec,PetscBool,PetscInt,const PetscScalar*);
42: PETSC_INTERN PetscErrorCode VecCreate_CUDA(Vec);
43: PETSC_INTERN PetscErrorCode VecDestroy_SeqCUDA(Vec);
44: PETSC_INTERN PetscErrorCode VecDestroy_MPICUDA(Vec);
45: PETSC_INTERN PetscErrorCode VecAYPX_SeqCUDA(Vec,PetscScalar,Vec);
46: PETSC_INTERN PetscErrorCode VecSetRandom_SeqCUDA(Vec,PetscRandom);
47: PETSC_INTERN PetscErrorCode VecGetLocalVector_SeqCUDA(Vec,Vec);
48: PETSC_INTERN PetscErrorCode VecRestoreLocalVector_SeqCUDA(Vec,Vec);
49: PETSC_INTERN PetscErrorCode VecGetArrayWrite_SeqCUDA(Vec,PetscScalar**);
50: PETSC_INTERN PetscErrorCode VecCopy_SeqCUDA_Private(Vec xin,Vec yin);
51: PETSC_INTERN PetscErrorCode VecSetRandom_SeqCUDA_Private(Vec xin,PetscRandom r);
52: PETSC_INTERN PetscErrorCode VecDestroy_SeqCUDA_Private(Vec v);
53: PETSC_INTERN PetscErrorCode VecResetArray_SeqCUDA_Private(Vec vin);
54: PETSC_INTERN PetscErrorCode VecCUDACopyToGPU_Public(Vec);
55: PETSC_INTERN PetscErrorCode VecCUDAAllocateCheck_Public(Vec);
56: PETSC_INTERN PetscErrorCode VecCUDACopyToGPUSome(Vec,PetscCUDAIndices,ScatterMode);
57: PETSC_INTERN PetscErrorCode VecCUDACopyFromGPUSome(Vec,PetscCUDAIndices,ScatterMode);
59: PETSC_INTERN PetscErrorCode VecScatterCUDAIndicesCreate_PtoP(PetscInt, PetscInt*,PetscInt, PetscInt*,PetscCUDAIndices*);
60: PETSC_INTERN PetscErrorCode VecScatterCUDAIndicesCreate_StoS(PetscInt,PetscInt,PetscInt,PetscInt,PetscInt,PetscInt*,PetscInt*,PetscCUDAIndices*);
61: PETSC_INTERN PetscErrorCode VecScatterCUDAIndicesDestroy(PetscCUDAIndices*);
62: PETSC_INTERN PetscErrorCode VecScatterCUDA_StoS(Vec,Vec,PetscCUDAIndices,InsertMode,ScatterMode);
64: typedef enum {VEC_SCATTER_CUDA_STOS, VEC_SCATTER_CUDA_PTOP} VecCUDAScatterType;
65: typedef enum {VEC_SCATTER_CUDA_GENERAL, VEC_SCATTER_CUDA_STRIDED} VecCUDASequentialScatterMode;
67: struct _p_VecScatterCUDAIndices_PtoP {
68: PetscInt ns;
69: PetscInt sendLowestIndex;
70: PetscInt nr;
71: PetscInt recvLowestIndex;
72: };
74: struct _p_VecScatterCUDAIndices_StoS {
75: /* from indices data */
76: PetscInt *fslots;
77: PetscInt fromFirst;
78: PetscInt fromStep;
79: VecCUDASequentialScatterMode fromMode;
81: /* to indices data */
82: PetscInt *tslots;
83: PetscInt toFirst;
84: PetscInt toStep;
85: VecCUDASequentialScatterMode toMode;
87: PetscInt n;
88: PetscInt MAX_BLOCKS;
89: PetscInt MAX_CORESIDENT_THREADS;
90: cudaStream_t stream;
91: };
93: struct _p_PetscCUDAIndices {
94: void * scatter;
95: VecCUDAScatterType scatterType;
96: };
98: /* complex single */
99: #if defined(PETSC_USE_COMPLEX)
100: #if defined(PETSC_USE_REAL_SINGLE)
101: #define cublasXaxpy(a,b,c,d,e,f,g) cublasCaxpy((a),(b),(cuComplex*)(c),(cuComplex*)(d),(e),(cuComplex*)(f),(g))
102: #define cublasXscal(a,b,c,d,e) cublasCscal((a),(b),(cuComplex*)(c),(cuComplex*)(d),(e))
103: #define cublasXdotu(a,b,c,d,e,f,g) cublasCdotu((a),(b),(cuComplex*)(c),(d),(cuComplex*)(e),(f),(cuComplex*)(g))
104: #define cublasXdot(a,b,c,d,e,f,g) cublasCdotc((a),(b),(cuComplex*)(c),(d),(cuComplex*)(e),(f),(cuComplex*)(g))
105: #define cublasXswap(a,b,c,d,e,f) cublasCswap((a),(b),(cuComplex*)(c),(d),(cuComplex*)(e),(f))
106: #define cublasXnrm2(a,b,c,d,e) cublasScnrm2((a),(b),(cuComplex*)(c),(d),(e))
107: #define cublasIXamax(a,b,c,d,e) cublasIcamax((a),(b),(cuComplex*)(c),(d),(e))
108: #define cublasXasum(a,b,c,d,e) cublasScasum((a),(b),(cuComplex*)(c),(d),(e))
109: #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))
110: #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))
111: #define cublasXgeam(a,b,c,d,e,f,g,h,i,j,k,l,m) cublasCgeam((a),(b),(c),(d),(e),(cuComplex*)(f),(cuComplex*)(g),(h),(cuComplex*)(i),(cuComplex*)(j),(k),(cuComplex*)(l),(m))
112: #else /* complex double */
113: #define cublasXaxpy(a,b,c,d,e,f,g) cublasZaxpy((a),(b),(cuDoubleComplex*)(c),(cuDoubleComplex*)(d),(e),(cuDoubleComplex*)(f),(g))
114: #define cublasXscal(a,b,c,d,e) cublasZscal((a),(b),(cuDoubleComplex*)(c),(cuDoubleComplex*)(d),(e))
115: #define cublasXdotu(a,b,c,d,e,f,g) cublasZdotu((a),(b),(cuDoubleComplex*)(c),(d),(cuDoubleComplex*)(e),(f),(cuDoubleComplex*)(g))
116: #define cublasXdot(a,b,c,d,e,f,g) cublasZdotc((a),(b),(cuDoubleComplex*)(c),(d),(cuDoubleComplex*)(e),(f),(cuDoubleComplex*)(g))
117: #define cublasXswap(a,b,c,d,e,f) cublasZswap((a),(b),(cuDoubleComplex*)(c),(d),(cuDoubleComplex*)(e),(f))
118: #define cublasXnrm2(a,b,c,d,e) cublasDznrm2((a),(b),(cuDoubleComplex*)(c),(d),(e))
119: #define cublasIXamax(a,b,c,d,e) cublasIzamax((a),(b),(cuDoubleComplex*)(c),(d),(e))
120: #define cublasXasum(a,b,c,d,e) cublasDzasum((a),(b),(cuDoubleComplex*)(c),(d),(e))
121: #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))
122: #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))
123: #define cublasXgeam(a,b,c,d,e,f,g,h,i,j,k,l,m) cublasZgeam((a),(b),(c),(d),(e),(cuDoubleComplex*)(f),(cuDoubleComplex*)(g),(h),(cuDoubleComplex*)(i),(cuDoubleComplex*)(j),(k),(cuDoubleComplex*)(l),(m))
124: #endif
125: #else /* real single */
126: #if defined(PETSC_USE_REAL_SINGLE)
127: #define cublasXaxpy cublasSaxpy
128: #define cublasXscal cublasSscal
129: #define cublasXdotu cublasSdot
130: #define cublasXdot cublasSdot
131: #define cublasXswap cublasSswap
132: #define cublasXnrm2 cublasSnrm2
133: #define cublasIXamax cublasIsamax
134: #define cublasXasum cublasSasum
135: #define cublasXgemv cublasSgemv
136: #define cublasXgemm cublasSgemm
137: #define cublasXgeam cublasSgeam
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: #define cublasXgeam cublasDgeam
150: #endif
151: #endif
153: #endif