struct s_proc_tree {
int PROCTREE_A;
int numChildren;
- int * child;
+ int *child;
int parent;
int me;
int root;
int isRoot;
};
-typedef struct s_proc_tree * proc_tree_t;
+typedef struct s_proc_tree *proc_tree_t;
/**
* alloc and init
**/
-static proc_tree_t alloc_tree(int arity) {
+static proc_tree_t alloc_tree(int arity)
+{
proc_tree_t tree;
int i;
tree->isRoot = 0;
tree->numChildren = 0;
tree->child = xbt_new(int, arity);
- for(i = 0; i < arity; i++) {
+ for (i = 0; i < arity; i++) {
tree->child[i] = -1;
}
tree->root = -1;
/**
* free
**/
-static void free_tree(proc_tree_t tree) {
- xbt_free(tree->child );
+static void free_tree(proc_tree_t tree)
+{
+ xbt_free(tree->child);
xbt_free(tree);
}
* @param index the rank of the calling process
* @param extent the total number of processes
**/
-static void build_tree(int index, int extent, proc_tree_t* tree) {
+static void build_tree(int index, int extent, proc_tree_t * tree)
+{
int places = (*tree)->PROCTREE_A * index;
int i, ch, pr;
(*tree)->me = index;
- (*tree)->root = 0 ;
- for(i = 1; i <= (*tree)->PROCTREE_A; i++) {
+ (*tree)->root = 0;
+ for (i = 1; i <= (*tree)->PROCTREE_A; i++) {
++places;
ch = (*tree)->PROCTREE_A * index + i + (*tree)->root;
ch %= extent;
- if(places < extent) {
+ if (places < extent) {
(*tree)->child[i - 1] = ch;
(*tree)->numChildren++;
}
}
- if(index == (*tree)->root) {
+ if (index == (*tree)->root) {
(*tree)->isRoot = 1;
} else {
(*tree)->isRoot = 0;
/**
* bcast
**/
-static void tree_bcast(void* buf, int count, MPI_Datatype datatype, int root, MPI_Comm comm, proc_tree_t tree) {
- int system_tag = 999; // used negative int but smpi_create_request() declares this illegal (to be checked)
+static void tree_bcast(void *buf, int count, MPI_Datatype datatype,
+ int root, MPI_Comm comm, proc_tree_t tree)
+{
+ int system_tag = 999; // used negative int but smpi_create_request() declares this illegal (to be checked)
int rank, i;
- MPI_Request* requests;
+ MPI_Request *requests;
rank = smpi_comm_rank(comm);
/* wait for data from my parent in the tree */
- if(!tree->isRoot) {
+ if (!tree->isRoot) {
DEBUG3("<%d> tree_bcast(): i am not root: recv from %d, tag=%d)",
rank, tree->parent, system_tag + rank);
- smpi_mpi_recv(buf, count, datatype, tree->parent, system_tag + rank, comm, MPI_STATUS_IGNORE);
+ smpi_mpi_recv(buf, count, datatype, tree->parent, system_tag + rank,
+ comm, MPI_STATUS_IGNORE);
}
requests = xbt_new(MPI_Request, tree->numChildren);
- DEBUG2("<%d> creates %d requests (1 per child)", rank, tree->numChildren);
+ DEBUG2("<%d> creates %d requests (1 per child)", rank,
+ tree->numChildren);
/* iniates sends to ranks lower in the tree */
- for(i = 0; i < tree->numChildren; i++) {
- if(tree->child[i] == -1) {
+ for (i = 0; i < tree->numChildren; i++) {
+ if (tree->child[i] == -1) {
requests[i] = MPI_REQUEST_NULL;
} else {
- DEBUG3("<%d> send to <%d>, tag=%d", rank, tree->child[i], system_tag + tree->child[i]);
- requests[i] = smpi_isend_init(buf, count, datatype, tree->child[i], system_tag + tree->child[i], comm);
+ DEBUG3("<%d> send to <%d>, tag=%d", rank, tree->child[i],
+ system_tag + tree->child[i]);
+ requests[i] =
+ smpi_isend_init(buf, count, datatype, tree->child[i],
+ system_tag + tree->child[i], comm);
}
}
smpi_mpi_startall(tree->numChildren, requests);
/**
* anti-bcast
**/
-static void tree_antibcast(void* buf, int count, MPI_Datatype datatype, int root, MPI_Comm comm, proc_tree_t tree) {
- int system_tag = 999; // used negative int but smpi_create_request() declares this illegal (to be checked)
+static void tree_antibcast(void *buf, int count, MPI_Datatype datatype,
+ int root, MPI_Comm comm, proc_tree_t tree)
+{
+ int system_tag = 999; // used negative int but smpi_create_request() declares this illegal (to be checked)
int rank, i;
- MPI_Request* requests;
+ MPI_Request *requests;
rank = smpi_comm_rank(comm);
// everyone sends to its parent, except root.
- if(!tree->isRoot) {
+ if (!tree->isRoot) {
DEBUG3("<%d> tree_antibcast(): i am not root: send to %d, tag=%d)",
rank, tree->parent, system_tag + rank);
- smpi_mpi_send(buf, count, datatype, tree->parent, system_tag + rank, comm);
+ smpi_mpi_send(buf, count, datatype, tree->parent, system_tag + rank,
+ comm);
}
//every one receives as many messages as it has children
requests = xbt_new(MPI_Request, tree->numChildren);
- DEBUG2("<%d> creates %d requests (1 per child)", rank, tree->numChildren);
- for(i = 0; i < tree->numChildren; i++) {
- if(tree->child[i] == -1) {
+ DEBUG2("<%d> creates %d requests (1 per child)", rank,
+ tree->numChildren);
+ for (i = 0; i < tree->numChildren; i++) {
+ if (tree->child[i] == -1) {
requests[i] = MPI_REQUEST_NULL;
} else {
- DEBUG3("<%d> recv from <%d>, tag=%d", rank, tree->child[i], system_tag + tree->child[i]);
- requests[i] = smpi_irecv_init(buf, count, datatype, tree->child[i], system_tag + tree->child[i], comm);
+ DEBUG3("<%d> recv from <%d>, tag=%d", rank, tree->child[i],
+ system_tag + tree->child[i]);
+ requests[i] =
+ smpi_irecv_init(buf, count, datatype, tree->child[i],
+ system_tag + tree->child[i], comm);
}
}
smpi_mpi_startall(tree->numChildren, requests);
/**
* bcast with a binary, ternary, or whatever tree ..
**/
-void nary_tree_bcast(void* buf, int count, MPI_Datatype datatype, int root, MPI_Comm comm, int arity) {
+void nary_tree_bcast(void *buf, int count, MPI_Datatype datatype, int root,
+ MPI_Comm comm, int arity)
+{
proc_tree_t tree = alloc_tree(arity);
int rank, size;
/**
* barrier with a binary, ternary, or whatever tree ..
**/
-void nary_tree_barrier(MPI_Comm comm, int arity) {
- proc_tree_t tree = alloc_tree( arity );
+void nary_tree_barrier(MPI_Comm comm, int arity)
+{
+ proc_tree_t tree = alloc_tree(arity);
int rank, size;
- char dummy='$';
+ char dummy = '$';
rank = smpi_comm_rank(comm);
size = smpi_comm_size(comm);
*
* Openmpi calls this routine when the message size sent to each rank < 2000 bytes and size < 12
**/
-int smpi_coll_tuned_alltoall_bruck(void* sendbuf, int sendcount, MPI_Datatype sendtype, void* recvbuf, int recvcount, MPI_Datatype recvtype, MPI_Comm comm) {
+int smpi_coll_tuned_alltoall_bruck(void *sendbuf, int sendcount,
+ MPI_Datatype sendtype, void *recvbuf,
+ int recvcount, MPI_Datatype recvtype,
+ MPI_Comm comm)
+{
int system_tag = 777;
int i, rank, size, err, count;
- MPI_Aint lb, sendextent, recvextent;
- MPI_Request* requests;
+ MPI_Aint lb;
+ MPI_Aint sendextent = 0;
+ MPI_Aint recvextent = 0;
+ MPI_Request *requests;
// FIXME: check implementation
rank = smpi_comm_rank(comm);
err = smpi_datatype_extent(sendtype, &lb, &sendextent);
err = smpi_datatype_extent(recvtype, &lb, &recvextent);
/* Local copy from self */
- err = smpi_datatype_copy(&((char*)sendbuf)[rank * sendextent], sendcount, sendtype, &((char*)recvbuf)[rank * recvextent], recvcount, recvtype);
- if(err == MPI_SUCCESS && size > 1) {
+ err =
+ smpi_datatype_copy(&((char *) sendbuf)[rank * sendextent], sendcount,
+ sendtype, &((char *) recvbuf)[rank * recvextent],
+ recvcount, recvtype);
+ if (err == MPI_SUCCESS && size > 1) {
/* Initiate all send/recv to/from others. */
requests = xbt_new(MPI_Request, 2 * (size - 1));
count = 0;
/* Create all receives that will be posted first */
- for(i = 0; i < size; ++i) {
- if(i == rank) {
- DEBUG3("<%d> skip request creation [src = %d, recvcount = %d]", rank, i, recvcount);
+ for (i = 0; i < size; ++i) {
+ if (i == rank) {
+ DEBUG3("<%d> skip request creation [src = %d, recvcount = %d]",
+ rank, i, recvcount);
continue;
}
- requests[count] = smpi_irecv_init(&((char*)recvbuf)[i * recvextent], recvcount, recvtype, i, system_tag, comm);
+ requests[count] =
+ smpi_irecv_init(&((char *) recvbuf)[i * recvextent], recvcount,
+ recvtype, i, system_tag, comm);
count++;
}
/* Now create all sends */
- for(i = 0; i < size; ++i) {
- if(i == rank) {
- DEBUG3("<%d> skip request creation [dst = %d, sendcount = %d]", rank, i, sendcount);
+ for (i = 0; i < size; ++i) {
+ if (i == rank) {
+ DEBUG3("<%d> skip request creation [dst = %d, sendcount = %d]",
+ rank, i, sendcount);
continue;
}
- requests[count] = smpi_isend_init(&((char*)sendbuf)[i * sendextent], sendcount, sendtype, i, system_tag, comm);
+ requests[count] =
+ smpi_isend_init(&((char *) sendbuf)[i * sendextent], sendcount,
+ sendtype, i, system_tag, comm);
count++;
}
- /* Wait for them all.*/
+ /* Wait for them all. */
smpi_mpi_startall(count, requests);
DEBUG2("<%d> wait for %d requests", rank, count);
smpi_mpi_waitall(count, requests, MPI_STATUS_IGNORE);
/**
* Alltoall basic_linear
**/
-int smpi_coll_tuned_alltoall_basic_linear(void *sendbuf, int sendcount, MPI_Datatype sendtype, void* recvbuf, int recvcount, MPI_Datatype recvtype, MPI_Comm comm) {
+int smpi_coll_tuned_alltoall_basic_linear(void *sendbuf, int sendcount,
+ MPI_Datatype sendtype,
+ void *recvbuf, int recvcount,
+ MPI_Datatype recvtype,
+ MPI_Comm comm)
+{
int system_tag = 888;
int i, rank, size, err, count;
- MPI_Aint lb, sendinc, recvinc;
+ MPI_Aint lb;
+ MPI_Aint sendinc = 0;
+ MPI_Aint recvinc = 0;
MPI_Request *requests;
/* Initialize. */
sendinc *= sendcount;
recvinc *= recvcount;
/* simple optimization */
- err = smpi_datatype_copy(&((char*)sendbuf)[rank * sendinc], sendcount, sendtype, &((char*)recvbuf)[rank * recvinc], recvcount, recvtype);
- if(err == MPI_SUCCESS && size > 1) {
+ err =
+ smpi_datatype_copy(&((char *) sendbuf)[rank * sendinc], sendcount,
+ sendtype, &((char *) recvbuf)[rank * recvinc],
+ recvcount, recvtype);
+ if (err == MPI_SUCCESS && size > 1) {
/* Initiate all send/recv to/from others. */
requests = xbt_new(MPI_Request, 2 * (size - 1));
/* Post all receives first -- a simple optimization */
count = 0;
- for(i = (rank + 1) % size; i != rank; i = (i + 1) % size) {
- requests[count] = smpi_irecv_init(&((char*)recvbuf)[i * recvinc], recvcount, recvtype, i, system_tag, comm);
+ for (i = (rank + 1) % size; i != rank; i = (i + 1) % size) {
+ requests[count] =
+ smpi_irecv_init(&((char *) recvbuf)[i * recvinc], recvcount,
+ recvtype, i, system_tag, comm);
count++;
}
/* Now post all sends in reverse order
* when messages actually arrive in the order in which they were posted.
* TODO: check the previous assertion
*/
- for(i = (rank + size - 1) % size; i != rank; i = (i + size - 1) % size ) {
- requests[count] = smpi_isend_init(&((char*)sendbuf)[i * sendinc], sendcount, sendtype, i, system_tag, comm);
+ for (i = (rank + size - 1) % size; i != rank;
+ i = (i + size - 1) % size) {
+ requests[count] =
+ smpi_isend_init(&((char *) sendbuf)[i * sendinc], sendcount,
+ sendtype, i, system_tag, comm);
count++;
}
- /* Wait for them all.*/
+ /* Wait for them all. */
smpi_mpi_startall(count, requests);
DEBUG2("<%d> wait for %d requests", rank, count);
smpi_mpi_waitall(count, requests, MPI_STATUS_IGNORE);
* ....
* Openmpi calls this routine when the message size sent to each rank is greater than 3000 bytes
**/
-int smpi_coll_tuned_alltoall_pairwise(void* sendbuf, int sendcount, MPI_Datatype sendtype, void* recvbuf, int recvcount, MPI_Datatype recvtype, MPI_Comm comm) {
+int smpi_coll_tuned_alltoall_pairwise(void *sendbuf, int sendcount,
+ MPI_Datatype sendtype, void *recvbuf,
+ int recvcount, MPI_Datatype recvtype,
+ MPI_Comm comm)
+{
int system_tag = 999;
int rank, size, step, sendto, recvfrom, sendsize, recvsize;
sendsize = smpi_datatype_size(sendtype);
recvsize = smpi_datatype_size(recvtype);
/* Perform pairwise exchange - starting from 1 so the local copy is last */
- for(step = 1; step < size + 1; step++) {
+ for (step = 1; step < size + 1; step++) {
/* who do we talk to in this step? */
- sendto = (rank+step)%size;
- recvfrom = (rank+size-step)%size;
+ sendto = (rank + step) % size;
+ recvfrom = (rank + size - step) % size;
/* send and receive */
- smpi_mpi_sendrecv(&((char*)sendbuf)[sendto * sendsize * sendcount], sendcount, sendtype, sendto, system_tag, &((char*)recvbuf)[recvfrom * recvsize * recvcount], recvcount, recvtype, recvfrom, system_tag, comm, MPI_STATUS_IGNORE);
+ smpi_mpi_sendrecv(&((char *) sendbuf)[sendto * sendsize * sendcount],
+ sendcount, sendtype, sendto, system_tag,
+ &((char *) recvbuf)[recvfrom * recvsize * recvcount],
+ recvcount, recvtype, recvfrom, system_tag, comm,
+ MPI_STATUS_IGNORE);
}
return MPI_SUCCESS;
}
-int smpi_coll_basic_alltoallv(void* sendbuf, int* sendcounts, int* senddisps, MPI_Datatype sendtype, void* recvbuf, int *recvcounts, int* recvdisps, MPI_Datatype recvtype, MPI_Comm comm) {
+int smpi_coll_basic_alltoallv(void *sendbuf, int *sendcounts,
+ int *senddisps, MPI_Datatype sendtype,
+ void *recvbuf, int *recvcounts,
+ int *recvdisps, MPI_Datatype recvtype,
+ MPI_Comm comm)
+{
int system_tag = 889;
int i, rank, size, err, count;
- MPI_Aint lb, sendextent, recvextent;
- MPI_Request* requests;
+ MPI_Aint lb;
+ MPI_Aint sendextent = 0;
+ MPI_Aint recvextent = 0;
+ MPI_Request *requests;
/* Initialize. */
rank = smpi_comm_rank(comm);
err = smpi_datatype_extent(sendtype, &lb, &sendextent);
err = smpi_datatype_extent(recvtype, &lb, &recvextent);
/* Local copy from self */
- err = smpi_datatype_copy(&((char*)sendbuf)[senddisps[rank] * sendextent], sendcounts[rank], sendtype, &((char*)recvbuf)[recvdisps[rank] * recvextent], recvcounts[rank], recvtype);
- if(err == MPI_SUCCESS && size > 1) {
+ err =
+ smpi_datatype_copy(&((char *) sendbuf)[senddisps[rank] * sendextent],
+ sendcounts[rank], sendtype,
+ &((char *) recvbuf)[recvdisps[rank] * recvextent],
+ recvcounts[rank], recvtype);
+ if (err == MPI_SUCCESS && size > 1) {
/* Initiate all send/recv to/from others. */
requests = xbt_new(MPI_Request, 2 * (size - 1));
count = 0;
/* Create all receives that will be posted first */
- for(i = 0; i < size; ++i) {
- if(i == rank || recvcounts[i] == 0) {
- DEBUG3("<%d> skip request creation [src = %d, recvcounts[src] = %d]", rank, i, recvcounts[i]);
+ for (i = 0; i < size; ++i) {
+ if (i == rank || recvcounts[i] == 0) {
+ DEBUG3
+ ("<%d> skip request creation [src = %d, recvcounts[src] = %d]",
+ rank, i, recvcounts[i]);
continue;
}
- requests[count] = smpi_irecv_init(&((char*)recvbuf)[recvdisps[i] * recvextent], recvcounts[i], recvtype, i, system_tag, comm);
+ requests[count] =
+ smpi_irecv_init(&((char *) recvbuf)[recvdisps[i] * recvextent],
+ recvcounts[i], recvtype, i, system_tag, comm);
count++;
}
/* Now create all sends */
- for(i = 0; i < size; ++i) {
- if(i == rank || sendcounts[i] == 0) {
- DEBUG3("<%d> skip request creation [dst = %d, sendcounts[dst] = %d]", rank, i, sendcounts[i]);
+ for (i = 0; i < size; ++i) {
+ if (i == rank || sendcounts[i] == 0) {
+ DEBUG3
+ ("<%d> skip request creation [dst = %d, sendcounts[dst] = %d]",
+ rank, i, sendcounts[i]);
continue;
}
- requests[count] = smpi_isend_init(&((char*)sendbuf)[senddisps[i] * sendextent], sendcounts[i], sendtype, i, system_tag, comm);
+ requests[count] =
+ smpi_isend_init(&((char *) sendbuf)[senddisps[i] * sendextent],
+ sendcounts[i], sendtype, i, system_tag, comm);
count++;
}
- /* Wait for them all.*/
+ /* Wait for them all. */
smpi_mpi_startall(count, requests);
DEBUG2("<%d> wait for %d requests", rank, count);
smpi_mpi_waitall(count, requests, MPI_STATUS_IGNORE);
