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36 #ifndef _domdec_network_h
37 #define _domdec_network_h
46 dddirForward, dddirBackward
49 /* Move integers in the comm. region one cell along the domain decomposition
50 * in the dimension indexed by ddimind
51 * forward (direction=dddirFoward) or backward (direction=dddirBackward).
54 dd_sendrecv_int(const gmx_domdec_t *dd,
55 int ddimind, int direction,
59 /* Move reals in the comm. region one cell along the domain decomposition
60 * in the dimension indexed by ddimind
61 * forward (direction=dddirFoward) or backward (direction=dddirBackward).
64 dd_sendrecv_real(const gmx_domdec_t *dd,
65 int ddimind, int direction,
67 real *buf_r, int n_r);
69 /* Move revc's in the comm. region one cell along the domain decomposition
70 * in dimension indexed by ddimind
71 * forward (direction=dddirFoward) or backward (direction=dddirBackward).
74 dd_sendrecv_rvec(const gmx_domdec_t *dd,
75 int ddimind, int direction,
77 rvec *buf_r, int n_r);
80 /* Move revc's in the comm. region one cell along the domain decomposition
81 * in dimension indexed by ddimind
82 * simultaneously in the forward and backward directions.
85 dd_sendrecv2_rvec(const gmx_domdec_t *dd,
87 rvec *buf_s_fw, int n_s_fw,
88 rvec *buf_r_fw, int n_r_fw,
89 rvec *buf_s_bw, int n_s_bw,
90 rvec *buf_r_bw, int n_r_bw);
93 /* The functions below perform the same operations as the MPI functions
94 * with the same name appendices, but over the domain decomposition
96 * The DD master node is the master for these operations.
100 dd_bcast(gmx_domdec_t *dd, int nbytes, void *data);
102 /* Copies src to dest on the master node and then broadcasts */
104 dd_bcastc(gmx_domdec_t *dd, int nbytes, void *src, void *dest);
107 dd_scatter(gmx_domdec_t *dd, int nbytes, void *src, void *dest);
110 dd_gather(gmx_domdec_t *dd, int nbytes, void *src, void *dest);
112 /* If rcount==0, rbuf is allowed to be NULL */
114 dd_scatterv(gmx_domdec_t *dd,
115 int *scounts, int *disps, void *sbuf,
116 int rcount, void *rbuf);
118 /* If scount==0, sbuf is allowed to be NULL */
120 dd_gatherv(gmx_domdec_t *dd,
121 int scount, void *sbuf,
122 int *rcounts, int *disps, void *rbuf);
128 #endif /* _domdec_network_h */