e4e3e411fc
Includes all MPI functions supported by Open MPI, including MPI-3 functions (as of about 2 weeks ago). Many changes compared to the prior generation of Java bindings; not much is left from the prior generation, actually. The changes include (but are not limited to): * Add support for more than just a subset of MPI-1 functions * Use typical Java case for symbol names * Support Java Direct buffers (giving darn-near "native C" performance) * Support "type struct" better than the prior generation * Make more of an effort for the Java bindings to be a thin layer over the back-end C bindings * ...and more A proper README with more information about what is supported, how to use these bindings, etc. will be committed shortly. This commit was SVN r29263.
93 строки
2.4 KiB
Java
93 строки
2.4 KiB
Java
/*
|
|
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 : CartParms.java
|
|
* Author : Xinying Li
|
|
* Created : Thu Apr 9 12:22:15 1998
|
|
* Revision : $Revision: 1.1 $
|
|
* Updated : $Date: 1998/08/26 18:49:50 $
|
|
* Copyright: Northeast Parallel Architectures Center
|
|
* at Syracuse University 1998
|
|
*/
|
|
|
|
package mpi;
|
|
|
|
/**
|
|
* Cartesian topology information associated with a communicator.
|
|
*/
|
|
public final class CartParms
|
|
{
|
|
/** Number of processes for each cartesian dimension. */
|
|
private final int[] dims;
|
|
|
|
/** Periodicity (true/false) for each cartesian dimension. */
|
|
private final boolean[] periods;
|
|
|
|
/** Coordinates of calling process in cartesian structure. */
|
|
private final int[] coords;
|
|
|
|
/**
|
|
* Constructs a cartesian topology information object.
|
|
* @param dims number of processes for each cartesian dimension.
|
|
* @param periods periodicity (true/false) for each cartesian dimension.
|
|
* @param coords coordinates of calling process in cartesian structure.
|
|
*/
|
|
protected CartParms(int[] dims, boolean[] periods, int[] coords)
|
|
{
|
|
this.dims = dims;
|
|
this.periods = periods;
|
|
this.coords = coords;
|
|
}
|
|
|
|
/**
|
|
* Returns the number of dimensions.
|
|
* @return number of dimensions.
|
|
*/
|
|
public int getDimCount()
|
|
{
|
|
return dims.length;
|
|
}
|
|
|
|
/**
|
|
* Returns the number of processes for a cartesian dimension.
|
|
* @param i cartesian dimension.
|
|
* @return number of processes for a cartesian dimension.
|
|
*/
|
|
public int getDim(int i)
|
|
{
|
|
return dims[i];
|
|
}
|
|
|
|
/**
|
|
* Returns the periodicity (true/false) for a cartesian dimension.
|
|
* @param i cartesian dimension.
|
|
* @return periodicity for a cartesian dimension.
|
|
*/
|
|
public boolean getPeriod(int i)
|
|
{
|
|
return periods[i];
|
|
}
|
|
|
|
/**
|
|
* Returns the coordinate of calling process for a cartesian dimension.
|
|
* @param i cartesian dimension.
|
|
* @return coordinate of calling process for a cartesian dimension.
|
|
*/
|
|
public int getCoord(int i)
|
|
{
|
|
return coords[i];
|
|
}
|
|
|
|
} // CartParms
|