36 #ifndef NEKTAR_LIB_UTILITIES_COMMUNICATION_GSLIB_HPP
37 #define NEKTAR_LIB_UTILITIES_COMMUNICATION_GSLIB_HPP
87 const unsigned int *map[2];
110 const unsigned int *map_to_buf[2], *map_from_buf[2];
115 gs_op op,
unsigned transpose,
const void *execdata,
116 const struct comm *
comm,
char *buf);
130 const unsigned int *map_local[2];
147 const struct comm *comm,
int unique,
gs_method method,
150 void nektar_gs_unique(
const long *
id,
unsigned int n,
const struct comm *comm);
170 #ifdef NEKTAR_USE_MPI
171 if (pComm->GetSize() == 1)
177 ASSERTL1(vCommMpi,
"Failed to cast MPI Comm object.");
179 MPI_Comm_dup(vCommMpi->GetComm(), &vComm.
c);
180 vComm.
id = vCommMpi->GetRank();
181 vComm.
np = vCommMpi->GetSize();
184 MPI_Comm_free(&vComm.
c);
203 #ifdef NEKTAR_USE_MPI
204 if (pComm->GetSize() == 1)
210 ASSERTL1(vCommMpi,
"Failed to cast MPI Comm object.");
212 vComm.
c = vCommMpi->GetComm();
213 vComm.
id = vCommMpi->GetRank();
214 vComm.
np = vCommMpi->GetSize();
224 #ifdef NEKTAR_USE_MPI
226 MPI_Finalized(&finalized);
227 if (pGsh && !finalized)
243 #ifdef NEKTAR_USE_MPI
248 if (pBuffer.num_elements() == 0)
255 buf.ptr = &pBuffer[0];
256 buf.n = pBuffer.num_elements();
static void Gather(Nektar::Array< OneD, NekDouble > pU, gs_op pOp, gs_data *pGsh, Nektar::Array< OneD, NekDouble > pBuffer=NullNekDouble1DArray)
Performs a gather-scatter operation of the provided values.
static Array< OneD, NekDouble > NullNekDouble1DArray
static void Finalise(gs_data *pGsh)
Deallocates the GSLib mapping data.
void nektar_gs_unique(const long *id, unsigned int n, const struct comm *comm)
void exec_fun(void *data, gs_mode mode, unsigned vn, gs_dom dom, gs_op op, unsigned transpose, const void *execdata, const struct comm *comm, char *buf)
static gs_data * Init(const Nektar::Array< OneD, long > pId, const LibUtilities::CommSharedPtr &pComm, bool verbose=true)
Initialise Gather-Scatter map.
boost::shared_ptr< Comm > CommSharedPtr
Pointer to a Communicator object.
gs_data * nektar_gs_setup(const long *id, unsigned int n, const struct comm *comm, int unique, gs_method method, int verbose)
boost::shared_ptr< CommMpi > CommMpiSharedPtr
Pointer to a Communicator object.
unsigned int stage_buffer_size
static void Unique(const Nektar::Array< OneD, long > pId, const LibUtilities::CommSharedPtr &pComm)
Updates pId to negate all-but-one references to each universal ID.
void nektar_gs_free(gs_data *gsh)
const unsigned int * scatter_map
const unsigned int * flagged_primaries
void nektar_gs(void *u, gs_dom dom, gs_op op, unsigned transpose, gs_data *gsh, buffer *buf)
#define ASSERTL1(condition, msg)
Assert Level 1 – Debugging which is used whether in FULLDEBUG or DEBUG compilation mode...