org.apache.sysds.runtime.io

Class WriterHDF5

java.lang.Object

org.apache.sysds.runtime.io.MatrixWriter

org.apache.sysds.runtime.io.WriterHDF5

Direct Known Subclasses:

WriterHDF5Parallel

public class WriterHDF5
extends MatrixWriter

Constructor Summary

Constructors

Constructor and Description
WriterHDF5(FileFormatPropertiesHDF5 _props)

Method Summary

Modifier and Type	Method and Description
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

WriterHDF5

public WriterHDF5(FileFormatPropertiesHDF5 _props)

Method Detail

writeMatrixToHDFS

public 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