openmpi/ompi/mpi/java/c/mpi_Group.c

/*
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
    You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

    Unless required by applicable law or agreed to in writing, software
    distributed under the License is distributed on an "AS IS" BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.
*/
/*
 * File         : mpi_Group.c
 * Headerfile   : mpi_Group.h 
 * Author       : Xinying Li
 * Created      : Thu Apr  9 12:22:15 1998
 * Revision     : $Revision: 1.3 $
 * Updated      : $Date: 2003/01/16 16:39:34 $
 * Copyright: Northeast Parallel Architectures Center
 *            at Syracuse University 1998
 */

#include "ompi_config.h"

#include <stdlib.h>
#ifdef HAVE_TARGETCONDITIONALS_H
#include <TargetConditionals.h>
#endif

#include "mpi.h"
#include "mpi_Group.h"
#include "mpiJava.h"


/* 
 * Class:     mpi_Group
 * Method:    init
 * Signature: ()V
 */
JNIEXPORT void JNICALL Java_mpi_Group_init(JNIEnv *env, jclass thisClass)
{
    ompi_java.GrouphandleID = (*env)->GetFieldID(env,thisClass,"handle","J");
}

/*
 * Class:     mpi_Group
 * Method:    GetGroup
 * Signature: (I)V
 */
JNIEXPORT void JNICALL Java_mpi_Group_GetGroup(JNIEnv *env, jobject jthis, jint type)
{
    switch (type) {
    case 0:
        (*env)->SetLongField(env,jthis, ompi_java.GrouphandleID, (jlong)MPI_GROUP_EMPTY);
        break;
    default:
        break;
    }
}

/*
 * Class:     mpi_Group
 * Method:    Size
 * Signature: ()I
 */
JNIEXPORT jint JNICALL Java_mpi_Group_Size(JNIEnv *env, jobject jthis)
{
    int size;

    ompi_java_clearFreeList(env) ;

    MPI_Group_size((MPI_Group)((*env)->GetLongField(env,jthis,ompi_java.GrouphandleID)),
                   &size);
    return size;
}

/* * Class:     mpi_Group
 * Method:    Rank
 * Signature: ()I
 */
JNIEXPORT jint JNICALL Java_mpi_Group_Rank(JNIEnv *env, jobject jthis)
{
    int rank;

    ompi_java_clearFreeList(env) ;

    MPI_Group_rank((MPI_Group)((*env)->GetLongField(env,jthis,ompi_java.GrouphandleID)),
                   &rank);
    return rank;
}

/*
 * Class:     mpi_Group
 * Method:    free
 * Signature: ()V
 */
JNIEXPORT void JNICALL Java_mpi_Group_free(JNIEnv *env, jobject jthis)
{
    MPI_Group group=(MPI_Group)((*env)->GetLongField(env,jthis,ompi_java.GrouphandleID));

    MPI_Group_free(&group);
    (*env)->SetLongField(env,jthis, ompi_java.GrouphandleID,(jlong)MPI_GROUP_NULL);
}

/*
 * Class:     mpi_Group
 * Method:    Translate_ranks
 * Signature: (Lmpi/Group;[ILmpi/Group;)[I
 */
JNIEXPORT jintArray JNICALL Java_mpi_Group_Translate_1ranks(JNIEnv *env, jclass jthis,
                                                            jobject group1, jintArray ranks1,
                                                            jobject group2)
{
    jboolean isCopy=JNI_TRUE;
    int n=(*env)->GetArrayLength(env,ranks1);
    jint *rks1,*rks2;
    jintArray jranks2;

    ompi_java_clearFreeList(env) ;

    rks1=(*env)->GetIntArrayElements(env,ranks1,&isCopy);
    jranks2=(*env)->NewIntArray(env,n);
    rks2=(*env)->GetIntArrayElements(env,jranks2,&isCopy);
    MPI_Group_translate_ranks((MPI_Group)((*env)->GetLongField(env,group1,ompi_java.GrouphandleID)),
                              n, (int*)rks1,
                              (MPI_Group)((*env)->GetLongField(env,group2,ompi_java.GrouphandleID)),
                              (int*)rks2);
    (*env)->ReleaseIntArrayElements(env,ranks1,rks1,0);
    (*env)->ReleaseIntArrayElements(env,jranks2,rks2,0);
    return jranks2;
}

/*
 * Class:     mpi_Group
 * Method:    Compare
 * Signature: (Lmpi/Group;Lmpi/Group;)I
 */
JNIEXPORT jint JNICALL Java_mpi_Group_Compare(JNIEnv *env, jclass jthis,
                                              jobject group1, jobject group2)
{
    int result;

    ompi_java_clearFreeList(env) ;

    MPI_Group_compare((MPI_Group)((*env)->GetLongField(env,group1,ompi_java.GrouphandleID)),
                      (MPI_Group)((*env)->GetLongField(env,group2,ompi_java.GrouphandleID)),
                      &result);
    return result;
}

/*
 * Class:     mpi_Group
 * Method:    union
 * Signature: (Lmpi/Group;Lmpi/Group;)J
 */
JNIEXPORT jlong JNICALL Java_mpi_Group_union(JNIEnv *env, jclass jthis,
                                             jobject group1, jobject group2)
{
    MPI_Group newgroup;

    ompi_java_clearFreeList(env) ;

    MPI_Group_union((MPI_Group)((*env)->GetLongField(env,group1,ompi_java.GrouphandleID)),
                    (MPI_Group)((*env)->GetLongField(env,group2,ompi_java.GrouphandleID)),
                    &newgroup);
    return (jlong)newgroup;
}
/*
 * Class:     mpi_Group
 * Method:    intersection
 * Signature: (Lmpi/Group;Lmpi/Group;)J
 */
JNIEXPORT jlong JNICALL Java_mpi_Group_intersection(JNIEnv *env, jclass jthis,
                                                    jobject group1, jobject group2)
{
    MPI_Group newgroup;

    ompi_java_clearFreeList(env) ;

    MPI_Group_intersection((MPI_Group)((*env)->GetLongField(env,group1,ompi_java.GrouphandleID)),
                           (MPI_Group)((*env)->GetLongField(env,group2,ompi_java.GrouphandleID)),
                           &newgroup);
    return (jlong)newgroup;
}

/*
 * Class:     mpi_Group
 * Method:    difference
 * Signature: (Lmpi/Group;Lmpi/Group;)J
 */
JNIEXPORT jlong JNICALL Java_mpi_Group_difference(JNIEnv *env, jclass jthis,
                                                  jobject group1, jobject group2)
{
    MPI_Group newgroup;

    ompi_java_clearFreeList(env) ;

    MPI_Group_difference((MPI_Group)((*env)->GetLongField(env,group1,ompi_java.GrouphandleID)),
                         (MPI_Group)((*env)->GetLongField(env,group2,ompi_java.GrouphandleID)),
                         &newgroup);
    return (jlong)newgroup;
}

/*
 * Class:     mpi_Group
 * Method:    incl
 * Signature: ([I)J
 */
JNIEXPORT jlong JNICALL Java_mpi_Group_incl(JNIEnv *env, jobject jthis, jintArray ranks)
{
    int n;
    jint *rks;
    jboolean isCopy=JNI_TRUE;
    MPI_Group newgroup;

    ompi_java_clearFreeList(env) ;

    n=(*env)->GetArrayLength(env,ranks);
    rks=(*env)->GetIntArrayElements(env,ranks,&isCopy);
    MPI_Group_incl((MPI_Group)((*env)->GetLongField(env,jthis,ompi_java.GrouphandleID)),
                   n, (int*)rks,
                   &newgroup);
    (*env)->ReleaseIntArrayElements(env,ranks,rks,0);
    return (jlong)newgroup;
}

/*
 * Class:     mpi_Group
 * Method:    excl
 * Signature: ([I)J
 */
JNIEXPORT jlong JNICALL Java_mpi_Group_excl(JNIEnv *env, jobject jthis, jintArray ranks)
{
    int n;
    jint *rks;
    jboolean isCopy=JNI_TRUE;
    MPI_Group newgroup;

    ompi_java_clearFreeList(env) ;

    n=(*env)->GetArrayLength(env,ranks);
    rks=(*env)->GetIntArrayElements(env,ranks,&isCopy);
    MPI_Group_excl((MPI_Group)((*env)->GetLongField(env,jthis,ompi_java.GrouphandleID)),
                   n, (int*)rks,
                   &newgroup);
    (*env)->ReleaseIntArrayElements(env,ranks,rks,0);
    return (jlong)newgroup;
}

/*
 * Class:     mpi_Group
 * Method:    range_incl
 * Signature: ([[I)J
 */
JNIEXPORT jlong JNICALL Java_mpi_Group_range_1incl(JNIEnv *env, jobject jthis, jobjectArray ranges)
{
    int i;
    int n=(*env)->GetArrayLength(env,ranges);
    jboolean isCopy=JNI_TRUE;
    MPI_Group newgroup;
    /*    jint **rngs=(jint**)calloc(n,sizeof(jint[3])); */
    int (*rngs) [3] =(int (*) [3])calloc(n,sizeof(int[3]));
    jintArray *jrngs=(jobject*)calloc(n,sizeof(jintArray));

    ompi_java_clearFreeList(env) ;

    for(i=0;i<n;i++) {
        jint *vec ;
        jrngs[i]=(*env)->GetObjectArrayElement(env,ranges,i);
        vec=(*env)->GetIntArrayElements(env, jrngs[i],&isCopy);
        rngs [i] [0] = vec [0] ;
        rngs [i] [1] = vec [1] ;
        rngs [i] [2] = vec [2] ;
        (*env)->ReleaseIntArrayElements(env,jrngs[i],vec,0);
    }

    MPI_Group_range_incl((MPI_Group)((*env)->GetLongField(env,jthis,ompi_java.GrouphandleID)),
                         n,rngs,&newgroup);

    free(rngs);
    free(jrngs);
    return (jlong)newgroup;
}

/*
 * Class:     mpi_Group
 * Method:    range_excl
 * Signature: ([[I)J
 */
JNIEXPORT jlong JNICALL Java_mpi_Group_range_1excl(JNIEnv *env, jobject jthis, jobjectArray ranges)
{
    int i;
    int n=(*env)->GetArrayLength(env,ranges);
    jboolean isCopy=JNI_TRUE;
    MPI_Group newgroup;
    /*    jint **rngs=(jint**)calloc(n,sizeof(jint*)); */
    int (*rngs) [3] =(int (*) [3])calloc(n,sizeof(int[3]));
    jintArray *jrngs=(jobject*)calloc(n,sizeof(jintArray));

    ompi_java_clearFreeList(env) ;

    for(i=0;i<n;i++) {
        jint* vec;
        jrngs[i]=(*env)->GetObjectArrayElement(env,ranges,i);
	vec=(*env)->GetIntArrayElements(env,
                                        jrngs[i],&isCopy);
        rngs [i] [0] = vec [0] ;
        rngs [i] [1] = vec [1] ;
        rngs [i] [2] = vec [2] ;
    	        
	(*env)->ReleaseIntArrayElements(env,jrngs[i],vec,0);
    }
    MPI_Group_range_excl((MPI_Group)((*env)->GetLongField(env,jthis,ompi_java.GrouphandleID)),
                         n, rngs,&newgroup);

    free(rngs);
    free(jrngs);
    return (jlong)newgroup;
}