Package org.apache.sysds.runtime.io

Class WriterMatrixMarket

java.lang.Object

org.apache.sysds.runtime.io.MatrixWriter

org.apache.sysds.runtime.io.WriterMatrixMarket

Direct Known Subclasses:

WriterMatrixMarketParallel

public class WriterMatrixMarket
extends MatrixWriter

Constructor Summary

Constructors

Constructor	Description
WriterMatrixMarket()

Method Summary

Modifier and Type	Method	Description
static void	mergeTextcellToMatrixMarket(String srcFileName, String fileName, long rlen, long clen, long nnz)
void	writeEmptyMatrixToHDFS(String fname, long rlen, long clen, int blen)	Writes a minimal entry to represent an empty matrix on hdfs.
void	writeMatrixToHDFS(MatrixBlock src, String fname, long rlen, long clen, int blen, long nnz, boolean diag)

Methods inherited from class org.apache.sysds.runtime.io.MatrixWriter

createMatrixBlocksForReuse, getMatrixBlockForReuse, writeMatrixToHDFS

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

WriterMatrixMarket

public WriterMatrixMarket()

Method Detail

writeMatrixToHDFS

public final void writeMatrixToHDFS(MatrixBlock src,
                                    String fname,
                                    long rlen,
                                    long clen,
                                    int blen,
                                    long nnz,
                                    boolean diag)
                             throws IOException,
                                    DMLRuntimeException

Specified by:

writeMatrixToHDFS in class MatrixWriter

Throws:

IOException

DMLRuntimeException

writeEmptyMatrixToHDFS

public final void writeEmptyMatrixToHDFS(String fname,
                                         long rlen,
                                         long clen,
                                         int blen)
                                  throws IOException,
                                         DMLRuntimeException

Description copied from class: MatrixWriter

Writes a minimal entry to represent an empty matrix on hdfs.

Specified by:

writeEmptyMatrixToHDFS in class MatrixWriter

Parameters:

fname - file name

rlen - number of rows

clen - number of columns

blen - number of rows/cols in block

Throws:

IOException - if IOException occurs

DMLRuntimeException

mergeTextcellToMatrixMarket

public static void mergeTextcellToMatrixMarket(String srcFileName,
                                               String fileName,
                                               long rlen,
                                               long clen,
                                               long nnz)
                                        throws IOException

Throws:

IOException