Actual source code: pipefgmresimpl.h
1: #if !defined(PIPEFGMRES_H_)
2: #define PIPEFGMRES_H_
4: #define KSPGMRES_NO_MACROS
5: #include <../src/ksp/ksp/impls/gmres/gmresimpl.h>
7: typedef struct {
8: KSPGMRESHEADER
10: /* new storage for explicit storage of preconditioned basis vectors */
11: Vec *prevecs; /* holds the preconditioned basis vectors for fgmres.
12: We will allocate these at the same time as vecs
13: above (and in the same "chunks". */
14: Vec **prevecs_user_work; /* same purpose as user_work above, but this one is
15: for our preconditioned vectors */
17: /* new storage for explicit storage of pipelining quantities */
18: Vec *zvecs;
19: Vec **zvecs_user_work;
21: /* A shift parameter */
22: PetscScalar shift;
24: /* Work space to allow all reductions in a single call */
25: Vec *redux;
27: } KSP_PIPEFGMRES;
29: #define HH(a,b) (pipefgmres->hh_origin + (b)*(pipefgmres->max_k+2)+(a))
30: /* HH will be size (max_k+2)*(max_k+1) - think of HH as
31: being stored columnwise for access purposes. */
32: #define HES(a,b) (pipefgmres->hes_origin + (b)*(pipefgmres->max_k+1)+(a))
33: /* HES will be size (max_k + 1) * (max_k + 1) -
34: again, think of HES as being stored columnwise */
35: #define CC(a) (pipefgmres->cc_origin + (a)) /* CC will be length (max_k+1) - cosines */
36: #define SS(a) (pipefgmres->ss_origin + (a)) /* SS will be length (max_k+1) - sines */
37: #define RS(a) (pipefgmres->rs_origin + (a)) /* RS will be length (max_k+2) - rt side */
39: /* vector names */
40: #define VEC_OFFSET 4
41: #define VEC_TEMP pipefgmres->vecs[0] /* work space */
42: #define VEC_TEMP_MATOP pipefgmres->vecs[1] /* work space */
43: #define VEC_Q pipefgmres->vecs[2] /* work space - Q pipelining var */
44: #define VEC_W pipefgmres->vecs[3] /* work space - W pipelining var */
46: #define VEC_VV(i) pipefgmres->vecs[VEC_OFFSET+i] /* use to access othog basis vectors
47: Note the offset, since we use
48: the first few as workspace */
50: #define PREVEC(i) pipefgmres->prevecs[i] /* use to access preconditioned basis */
51: #define ZVEC(i) pipefgmres->zvecs[i]
52: #endif