public void releaseMatrixOutputForGPUInstruction(String varName) throws DMLRuntimeException {
MatrixObject mo = getMatrixObject(varName);
if (mo.getGPUObject() == null || !mo.getGPUObject().isAllocated()) {
throw new DMLRuntimeException("No output is allocated on GPU");
}
mo.getGPUObject().releaseOutput();
}
public MatrixObject getDenseMatrixOutputForGPUInstruction(String varName)
throws DMLRuntimeException {
MatrixObject mo = allocateGPUMatrixObject(varName);
mo.getGPUObject().acquireDeviceModifyDense();
mo.getMatrixCharacteristics().setNonZeros(-1);
return mo;
}
/**
* Pin a given list of variables i.e., set the "clean up" state in corresponding matrix objects,
* so that the cached data inside these objects is not cleared and the corresponding HDFS files
* are not deleted (through rmvar instructions).
*
* <p>This is necessary for: function input variables, parfor result variables, parfor shared
* inputs that are passed to functions.
*
* <p>The function returns the OLD "clean up" state of matrix objects.
*
* @param varList variable list
* @return map of old cleanup state of matrix objects
*/
public HashMap<String, Boolean> pinVariables(ArrayList<String> varList) {
// 2-pass approach since multiple vars might refer to same matrix object
HashMap<String, Boolean> varsState = new HashMap<String, Boolean>();
// step 1) get current information
for (String var : varList) {
Data dat = _variables.get(var);
if (dat instanceof MatrixObject) {
MatrixObject mo = (MatrixObject) dat;
varsState.put(var, mo.isCleanupEnabled());
// System.out.println("pre-pin "+var+" ("+mo.isCleanupEnabled()+")");
}
}
// step 2) pin variables
for (String var : varList) {
Data dat = _variables.get(var);
if (dat instanceof MatrixObject) {
MatrixObject mo = (MatrixObject) dat;
mo.enableCleanup(false);
// System.out.println("pin "+var);
}
}
return varsState;
}
/**
* @param c
* @param vars
* @return
* @throws DMLRuntimeException
*/
private static LiteralOp replaceLiteralFullUnaryAggregate(Hop c, LocalVariableMap vars)
throws DMLRuntimeException {
LiteralOp ret = null;
// full unary aggregate w/ matrix less than 10^6 cells
if (c instanceof AggUnaryOp
&& isReplaceableUnaryAggregate((AggUnaryOp) c)
&& c.getInput().get(0) instanceof DataOp
&& vars.keySet().contains(c.getInput().get(0).getName())) {
Hop data = c.getInput().get(0);
MatrixObject mo = (MatrixObject) vars.get(data.getName());
// get the dimension information from the matrix object because the hop
// dimensions might not have been updated during recompile
if (mo.getNumRows() * mo.getNumColumns() < REPLACE_LITERALS_MAX_MATRIX_SIZE) {
MatrixBlock mBlock = mo.acquireRead();
double value = replaceUnaryAggregate((AggUnaryOp) c, mBlock);
mo.release();
// literal substitution (always double)
ret = new LiteralOp(value);
}
}
return ret;
}
/**
* @param hop
* @param vars
* @return
* @throws DMLRuntimeException
*/
private static long getIntValueDataLiteral(Hop hop, LocalVariableMap vars)
throws DMLRuntimeException {
long value = -1;
try {
if (hop instanceof LiteralOp) {
value = HopRewriteUtils.getIntValue((LiteralOp) hop);
} else if (hop instanceof UnaryOp && ((UnaryOp) hop).getOp() == OpOp1.NROW) {
// get the dimension information from the matrix object because the hop
// dimensions might not have been updated during recompile
MatrixObject mo = (MatrixObject) vars.get(hop.getInput().get(0).getName());
value = mo.getNumRows();
} else if (hop instanceof UnaryOp && ((UnaryOp) hop).getOp() == OpOp1.NCOL) {
// get the dimension information from the matrix object because the hop
// dimensions might not have been updated during recompile
MatrixObject mo = (MatrixObject) vars.get(hop.getInput().get(0).getName());
value = mo.getNumColumns();
} else {
ScalarObject sdat = (ScalarObject) vars.get(hop.getName());
value = sdat.getLongValue();
}
} catch (HopsException ex) {
throw new DMLRuntimeException("Failed to get int value for literal replacement", ex);
}
return value;
}
/**
* @param c
* @param vars
* @return
* @throws DMLRuntimeException
*/
private static LiteralOp replaceLiteralDataTypeCastMatrixRead(Hop c, LocalVariableMap vars)
throws DMLRuntimeException {
LiteralOp ret = null;
// as.scalar/matrix read - literal replacement
if (c instanceof UnaryOp
&& ((UnaryOp) c).getOp() == OpOp1.CAST_AS_SCALAR
&& c.getInput().get(0) instanceof DataOp
&& c.getInput().get(0).getDataType() == DataType.MATRIX) {
Data dat = vars.get(c.getInput().get(0).getName());
if (dat != null) // required for selective constant propagation
{
// cast as scalar (see VariableCPInstruction)
MatrixObject mo = (MatrixObject) dat;
MatrixBlock mBlock = mo.acquireRead();
if (mBlock.getNumRows() != 1 || mBlock.getNumColumns() != 1)
throw new DMLRuntimeException(
"Dimension mismatch - unable to cast matrix of dimension ("
+ mBlock.getNumRows()
+ " x "
+ mBlock.getNumColumns()
+ ") to scalar.");
double value = mBlock.getValue(0, 0);
mo.release();
// literal substitution (always double)
ret = new LiteralOp(value);
}
}
return ret;
}
/**
* Allocates the {@link GPUObject} for a given LOPS Variable (eg. _mVar3)
*
* @param varName variable name
* @return matrix object
* @throws DMLRuntimeException if DMLRuntimeException occurs
*/
public MatrixObject allocateGPUMatrixObject(String varName) throws DMLRuntimeException {
MatrixObject mo = getMatrixObject(varName);
if (mo.getGPUObject() == null) {
mo.setGPUObject(GPUContext.createGPUObject(mo));
}
return mo;
}
/**
* Function to perform LU decomposition on a given matrix.
*
* @param in matrix object
* @return array of matrix blocks
* @throws DMLRuntimeException if DMLRuntimeException occurs
*/
private static MatrixBlock[] computeLU(MatrixObject in) throws DMLRuntimeException {
if (in.getNumRows() != in.getNumColumns()) {
throw new DMLRuntimeException(
"LU Decomposition can only be done on a square matrix. Input matrix is rectangular (rows="
+ in.getNumRows()
+ ", cols="
+ in.getNumColumns()
+ ")");
}
Array2DRowRealMatrix matrixInput = DataConverter.convertToArray2DRowRealMatrix(in);
// Perform LUP decomposition
LUDecomposition ludecompose = new LUDecomposition(matrixInput);
RealMatrix P = ludecompose.getP();
RealMatrix L = ludecompose.getL();
RealMatrix U = ludecompose.getU();
// Read the results into native format
MatrixBlock mbP = DataConverter.convertToMatrixBlock(P.getData());
MatrixBlock mbL = DataConverter.convertToMatrixBlock(L.getData());
MatrixBlock mbU = DataConverter.convertToMatrixBlock(U.getData());
return new MatrixBlock[] {mbP, mbL, mbU};
}
public void setMatrixOutput(String varName, MatrixBlock outputData, UpdateType flag)
throws DMLRuntimeException {
if (flag.isInPlace()) {
// modify metadata to carry update status
MatrixObject mo = getMatrixObject(varName);
mo.setUpdateType(flag);
}
// default case
setMatrixOutput(varName, outputData);
}
/**
* @param c
* @param vars
* @return
* @throws DMLRuntimeException
*/
private static LiteralOp replaceLiteralFullUnaryAggregateRightIndexing(
Hop c, LocalVariableMap vars) throws DMLRuntimeException {
LiteralOp ret = null;
// full unary aggregate w/ indexed matrix less than 10^6 cells
if (c instanceof AggUnaryOp
&& isReplaceableUnaryAggregate((AggUnaryOp) c)
&& c.getInput().get(0) instanceof IndexingOp
&& c.getInput().get(0).getInput().get(0) instanceof DataOp) {
IndexingOp rix = (IndexingOp) c.getInput().get(0);
Hop data = rix.getInput().get(0);
Hop rl = rix.getInput().get(1);
Hop ru = rix.getInput().get(2);
Hop cl = rix.getInput().get(3);
Hop cu = rix.getInput().get(4);
if (data instanceof DataOp
&& vars.keySet().contains(data.getName())
&& isIntValueDataLiteral(rl, vars)
&& isIntValueDataLiteral(ru, vars)
&& isIntValueDataLiteral(cl, vars)
&& isIntValueDataLiteral(cu, vars)) {
long rlval = getIntValueDataLiteral(rl, vars);
long ruval = getIntValueDataLiteral(ru, vars);
long clval = getIntValueDataLiteral(cl, vars);
long cuval = getIntValueDataLiteral(cu, vars);
MatrixObject mo = (MatrixObject) vars.get(data.getName());
// get the dimension information from the matrix object because the hop
// dimensions might not have been updated during recompile
if (mo.getNumRows() * mo.getNumColumns() < REPLACE_LITERALS_MAX_MATRIX_SIZE) {
MatrixBlock mBlock = mo.acquireRead();
MatrixBlock mBlock2 =
mBlock.sliceOperations(
(int) (rlval - 1),
(int) (ruval - 1),
(int) (clval - 1),
(int) (cuval - 1),
new MatrixBlock());
double value = replaceUnaryAggregate((AggUnaryOp) c, mBlock2);
mo.release();
// literal substitution (always double)
ret = new LiteralOp(value);
}
}
}
return ret;
}
/**
* Unpin the a given list of variables by setting their "cleanup" status to the values specified
* by <code>varsStats</code>.
*
* <p>Typical usage: <code>
* oldStatus = pinVariables(varList);
* ...
* unpinVariables(varList, oldStatus);
* </code> i.e., a call to unpinVariables() is preceded by pinVariables().
*
* @param varList variable list
* @param varsState variable state
*/
public void unpinVariables(ArrayList<String> varList, HashMap<String, Boolean> varsState) {
for (String var : varList) {
// System.out.println("unpin "+var+" ("+varsState.get(var)+")");
Data dat = _variables.get(var);
if (dat instanceof MatrixObject) ((MatrixObject) dat).enableCleanup(varsState.get(var));
}
}
/**
* @param pfid
* @param program
* @param taskFile
* @param resultFile
* @param enableCPCaching
* @param mode
* @param numMappers
* @param replication
* @return
* @throws DMLRuntimeException
* @throws DMLUnsupportedOperationException
*/
public static RemoteParForJobReturn runJob(
long pfid,
String itervar,
String matrixvar,
String program,
String resultFile,
MatrixObject input,
ExecutionContext ec,
PDataPartitionFormat dpf,
OutputInfo oi,
boolean tSparseCol, // config params
boolean enableCPCaching,
int numReducers) // opt params
throws DMLRuntimeException, DMLUnsupportedOperationException {
String jobname = "ParFor-DPESP";
long t0 = DMLScript.STATISTICS ? System.nanoTime() : 0;
SparkExecutionContext sec = (SparkExecutionContext) ec;
JavaSparkContext sc = sec.getSparkContext();
// prepare input parameters
MatrixDimensionsMetaData md = (MatrixDimensionsMetaData) input.getMetaData();
MatrixCharacteristics mc = md.getMatrixCharacteristics();
InputInfo ii = InputInfo.BinaryBlockInputInfo;
// initialize accumulators for tasks/iterations
Accumulator<Integer> aTasks = sc.accumulator(0);
Accumulator<Integer> aIters = sc.accumulator(0);
JavaPairRDD<MatrixIndexes, MatrixBlock> in = sec.getBinaryBlockRDDHandleForVariable(matrixvar);
DataPartitionerRemoteSparkMapper dpfun = new DataPartitionerRemoteSparkMapper(mc, ii, oi, dpf);
RemoteDPParForSparkWorker efun =
new RemoteDPParForSparkWorker(
program, matrixvar, itervar, enableCPCaching, mc, tSparseCol, dpf, oi, aTasks, aIters);
List<Tuple2<Long, String>> out =
in.flatMapToPair(dpfun) // partition the input blocks
.groupByKey(numReducers) // group partition blocks
.mapPartitionsToPair(efun) // execute parfor tasks, incl cleanup
.collect(); // get output handles
// de-serialize results
LocalVariableMap[] results = RemoteParForUtils.getResults(out, LOG);
int numTasks = aTasks.value(); // get accumulator value
int numIters = aIters.value(); // get accumulator value
// create output symbol table entries
RemoteParForJobReturn ret = new RemoteParForJobReturn(true, numTasks, numIters, results);
// maintain statistics
Statistics.incrementNoOfCompiledSPInst();
Statistics.incrementNoOfExecutedSPInst();
if (DMLScript.STATISTICS) {
Statistics.maintainCPHeavyHitters(jobname, System.nanoTime() - t0);
}
return ret;
}
/**
* @param c
* @param vars
* @return
* @throws DMLRuntimeException
*/
private static LiteralOp replaceLiteralValueTypeCastRightIndexing(Hop c, LocalVariableMap vars)
throws DMLRuntimeException {
LiteralOp ret = null;
// as.scalar/right indexing w/ literals/vars and matrix less than 10^6 cells
if (c instanceof UnaryOp
&& ((UnaryOp) c).getOp() == OpOp1.CAST_AS_SCALAR
&& c.getInput().get(0) instanceof IndexingOp
&& c.getInput().get(0).getDataType() == DataType.MATRIX) {
IndexingOp rix = (IndexingOp) c.getInput().get(0);
Hop data = rix.getInput().get(0);
Hop rl = rix.getInput().get(1);
Hop ru = rix.getInput().get(2);
Hop cl = rix.getInput().get(3);
Hop cu = rix.getInput().get(4);
if (rix.dimsKnown()
&& rix.getDim1() == 1
&& rix.getDim2() == 1
&& data instanceof DataOp
&& vars.keySet().contains(data.getName())
&& isIntValueDataLiteral(rl, vars)
&& isIntValueDataLiteral(ru, vars)
&& isIntValueDataLiteral(cl, vars)
&& isIntValueDataLiteral(cu, vars)) {
long rlval = getIntValueDataLiteral(rl, vars);
long clval = getIntValueDataLiteral(cl, vars);
MatrixObject mo = (MatrixObject) vars.get(data.getName());
// get the dimension information from the matrix object because the hop
// dimensions might not have been updated during recompile
if (mo.getNumRows() * mo.getNumColumns() < REPLACE_LITERALS_MAX_MATRIX_SIZE) {
MatrixBlock mBlock = mo.acquireRead();
double value = mBlock.getValue((int) rlval - 1, (int) clval - 1);
mo.release();
// literal substitution (always double)
ret = new LiteralOp(value);
}
}
}
return ret;
}
/**
* Function to perform Eigen decomposition on a given matrix. Input must be a symmetric matrix.
*
* @param in matrix object
* @return array of matrix blocks
* @throws DMLRuntimeException if DMLRuntimeException occurs
*/
private static MatrixBlock[] computeEigen(MatrixObject in) throws DMLRuntimeException {
if (in.getNumRows() != in.getNumColumns()) {
throw new DMLRuntimeException(
"Eigen Decomposition can only be done on a square matrix. Input matrix is rectangular (rows="
+ in.getNumRows()
+ ", cols="
+ in.getNumColumns()
+ ")");
}
Array2DRowRealMatrix matrixInput = DataConverter.convertToArray2DRowRealMatrix(in);
EigenDecomposition eigendecompose = new EigenDecomposition(matrixInput);
RealMatrix eVectorsMatrix = eigendecompose.getV();
double[][] eVectors = eVectorsMatrix.getData();
double[] eValues = eigendecompose.getRealEigenvalues();
// Sort the eigen values (and vectors) in increasing order (to be compatible w/ LAPACK.DSYEVR())
int n = eValues.length;
for (int i = 0; i < n; i++) {
int k = i;
double p = eValues[i];
for (int j = i + 1; j < n; j++) {
if (eValues[j] < p) {
k = j;
p = eValues[j];
}
}
if (k != i) {
eValues[k] = eValues[i];
eValues[i] = p;
for (int j = 0; j < n; j++) {
p = eVectors[j][i];
eVectors[j][i] = eVectors[j][k];
eVectors[j][k] = p;
}
}
}
MatrixBlock mbValues = DataConverter.convertToMatrixBlock(eValues, true);
MatrixBlock mbVectors = DataConverter.convertToMatrixBlock(eVectors);
return new MatrixBlock[] {mbValues, mbVectors};
}
public void cleanupMatrixObject(MatrixObject mo) throws DMLRuntimeException {
try {
if (mo.isCleanupEnabled()) {
// compute ref count only if matrix cleanup actually necessary
if (!getVariables().hasReferences(mo)) {
// clean cached data
mo.clearData();
if (mo.isHDFSFileExists()) {
// clean hdfs data
String fpath = mo.getFileName();
if (fpath != null) {
MapReduceTool.deleteFileIfExistOnHDFS(fpath);
MapReduceTool.deleteFileIfExistOnHDFS(fpath + ".mtd");
}
}
}
}
} catch (Exception ex) {
throw new DMLRuntimeException(ex);
}
}
public MatrixObject getMatrixInputForGPUInstruction(String varName) throws DMLRuntimeException {
MatrixObject mo = getMatrixObject(varName);
if (mo == null) {
throw new DMLRuntimeException("No matrix object available for variable:" + varName);
}
if (mo.getGPUObject() == null) {
mo.setGPUObject(GPUContext.createGPUObject(mo));
}
boolean acquired = false;
if (!mo.getGPUObject().isAllocated()) {
mo.acquireRead();
acquired = true;
}
mo.getGPUObject().acquireDeviceRead();
if (acquired) {
mo.release();
}
return mo;
}
public void setMetaData(String varName, long nrows, long ncols) throws DMLRuntimeException {
MatrixObject mo = getMatrixObject(varName);
if (mo.getNumRows() == nrows && mo.getNumColumns() == ncols) return;
MetaData oldMetaData = mo.getMetaData();
if (oldMetaData == null || !(oldMetaData instanceof MatrixFormatMetaData))
throw new DMLRuntimeException("Metadata not available");
MatrixCharacteristics mc =
new MatrixCharacteristics(
(long) nrows,
(long) ncols,
(int) mo.getNumRowsPerBlock(),
(int) mo.getNumColumnsPerBlock());
mo.setMetaData(
new MatrixFormatMetaData(
mc,
((MatrixFormatMetaData) oldMetaData).getOutputInfo(),
((MatrixFormatMetaData) oldMetaData).getInputInfo()));
}
public static boolean isInSparseFormat(MatrixObject mo) {
if (mo.getGPUObject() != null && mo.getGPUObject().isAllocated())
return mo.getGPUObject().isInSparseFormat();
return MatrixBlock.evalSparseFormatInMemory(mo.getNumRows(), mo.getNumColumns(), mo.getNnz());
}
public static void matmult(
MatrixObject left1,
MatrixObject right1,
MatrixObject output,
boolean isLeftTransposed1,
boolean isRightTransposed1)
throws DMLRuntimeException {
if (isInSparseFormat(left1) || isInSparseFormat(right1)) {
throw new DMLRuntimeException("Sparse GPU matrix multiplication is not implemented");
}
// Since CuBLAS expects inputs in column-major format,
// reverse the order of matrix-multiplication and take care of dimension mismatch.
MatrixObject left = right1;
MatrixObject right = left1;
boolean isLeftTransposed = isRightTransposed1;
boolean isRightTransposed = isLeftTransposed1;
char transa = isLeftTransposed ? 'T' : 'N';
char transb = isRightTransposed ? 'T' : 'N';
// Note: the dimensions are swapped
int m = (int) (isLeftTransposed ? left.getNumRows() : left.getNumColumns());
int n = (int) (isRightTransposed ? right.getNumColumns() : right.getNumRows());
int k = (int) (isLeftTransposed ? left.getNumColumns() : left.getNumRows());
int k1 = (int) (isRightTransposed ? right.getNumRows() : right.getNumColumns());
if (k != k1) throw new DMLRuntimeException("Dimension mismatch: " + k + " != " + k1);
if (m == -1 || n == -1 || k == -1) throw new DMLRuntimeException("Incorrect dimensions");
double alpha = 1;
double beta = 0;
int lda = isLeftTransposed ? k : m;
int ldb = isRightTransposed ? n : k;
int ldc = m;
if (!left.getGPUObject().isAllocated() || !right.getGPUObject().isAllocated())
throw new DMLRuntimeException(
"One of input is not allocated:"
+ left.getGPUObject().isAllocated()
+ " "
+ right.getGPUObject().isAllocated());
if (!output.getGPUObject().isAllocated())
throw new DMLRuntimeException(
"Output is not allocated:" + output.getGPUObject().isAllocated());
Pointer A = ((JCudaObject) left.getGPUObject()).jcudaPointer;
Pointer B = ((JCudaObject) right.getGPUObject()).jcudaPointer;
Pointer C = ((JCudaObject) output.getGPUObject()).jcudaPointer;
JCublas.cublasDgemm(transa, transb, m, n, k, alpha, A, lda, B, ldb, beta, C, ldc);
}
/**
* @param pfid
* @param program
* @param taskFile
* @param resultFile
* @param _enableCPCaching
* @param mode
* @param numMappers
* @param replication
* @return
* @throws DMLRuntimeException
*/
public static RemoteParForJobReturn runJob(
long pfid,
String program,
String taskFile,
String resultFile,
MatrixObject colocatedDPMatrixObj, // inputs
boolean enableCPCaching,
int numMappers,
int replication,
int max_retry,
long minMem,
boolean jvmReuse) // opt params
throws DMLRuntimeException {
RemoteParForJobReturn ret = null;
String jobname = "ParFor-EMR";
long t0 = DMLScript.STATISTICS ? System.nanoTime() : 0;
JobConf job;
job = new JobConf(RemoteParForMR.class);
job.setJobName(jobname + pfid);
// maintain dml script counters
Statistics.incrementNoOfCompiledMRJobs();
try {
/////
// configure the MR job
// set arbitrary CP program blocks that will perform in the mapper
MRJobConfiguration.setProgramBlocks(job, program);
// enable/disable caching
MRJobConfiguration.setParforCachingConfig(job, enableCPCaching);
// set mappers, reducers, combiners
job.setMapperClass(RemoteParWorkerMapper.class); // map-only
// set input format (one split per row, NLineInputFormat default N=1)
if (ParForProgramBlock.ALLOW_DATA_COLOCATION && colocatedDPMatrixObj != null) {
job.setInputFormat(RemoteParForColocatedNLineInputFormat.class);
MRJobConfiguration.setPartitioningFormat(job, colocatedDPMatrixObj.getPartitionFormat());
MatrixCharacteristics mc = colocatedDPMatrixObj.getMatrixCharacteristics();
MRJobConfiguration.setPartitioningBlockNumRows(job, mc.getRowsPerBlock());
MRJobConfiguration.setPartitioningBlockNumCols(job, mc.getColsPerBlock());
MRJobConfiguration.setPartitioningFilename(job, colocatedDPMatrixObj.getFileName());
} else // default case
{
job.setInputFormat(NLineInputFormat.class);
}
// set the input path and output path
FileInputFormat.setInputPaths(job, new Path(taskFile));
// set output format
job.setOutputFormat(SequenceFileOutputFormat.class);
// set output path
MapReduceTool.deleteFileIfExistOnHDFS(resultFile);
FileOutputFormat.setOutputPath(job, new Path(resultFile));
// set the output key, value schema
job.setMapOutputKeyClass(LongWritable.class);
job.setMapOutputValueClass(Text.class);
job.setOutputKeyClass(LongWritable.class);
job.setOutputValueClass(Text.class);
//////
// set optimization parameters
// set the number of mappers and reducers
job.setNumMapTasks(numMappers); // numMappers
job.setNumReduceTasks(0);
// job.setInt("mapred.map.tasks.maximum", 1); //system property
// job.setInt("mapred.tasktracker.tasks.maximum",1); //system property
// job.setInt("mapred.jobtracker.maxtasks.per.job",1); //system property
// use FLEX scheduler configuration properties
if (ParForProgramBlock.USE_FLEX_SCHEDULER_CONF) {
job.setInt("flex.priority", 0); // highest
job.setInt("flex.map.min", 0);
job.setInt("flex.map.max", numMappers);
job.setInt("flex.reduce.min", 0);
job.setInt("flex.reduce.max", numMappers);
}
// set jvm memory size (if require)
String memKey = "mapred.child.java.opts";
if (minMem > 0 && minMem > InfrastructureAnalyzer.extractMaxMemoryOpt(job.get(memKey))) {
InfrastructureAnalyzer.setMaxMemoryOpt(job, memKey, minMem);
LOG.warn("Forcing '" + memKey + "' to -Xmx" + minMem / (1024 * 1024) + "M.");
}
// disable automatic tasks timeouts and speculative task exec
job.setInt("mapred.task.timeout", 0);
job.setMapSpeculativeExecution(false);
// set up map/reduce memory configurations (if in AM context)
DMLConfig config = ConfigurationManager.getConfig();
DMLAppMasterUtils.setupMRJobRemoteMaxMemory(job, config);
// enables the reuse of JVMs (multiple tasks per MR task)
if (jvmReuse) job.setNumTasksToExecutePerJvm(-1); // unlimited
// set sort io buffer (reduce unnecessary large io buffer, guaranteed memory consumption)
job.setInt(MRConfigurationNames.MR_TASK_IO_SORT_MB, 8); // 8MB
// set the replication factor for the results
job.setInt("dfs.replication", replication);
// set the max number of retries per map task
// disabled job-level configuration to respect cluster configuration
// note: this refers to hadoop2, hence it never had effect on mr1
// job.setInt("mapreduce.map.maxattempts", max_retry);
// set unique working dir
MRJobConfiguration.setUniqueWorkingDir(job);
/////
// execute the MR job
RunningJob runjob = JobClient.runJob(job);
// Process different counters
Statistics.incrementNoOfExecutedMRJobs();
Group pgroup = runjob.getCounters().getGroup(ParForProgramBlock.PARFOR_COUNTER_GROUP_NAME);
int numTasks = (int) pgroup.getCounter(Stat.PARFOR_NUMTASKS.toString());
int numIters = (int) pgroup.getCounter(Stat.PARFOR_NUMITERS.toString());
if (DMLScript.STATISTICS && !InfrastructureAnalyzer.isLocalMode()) {
Statistics.incrementJITCompileTime(pgroup.getCounter(Stat.PARFOR_JITCOMPILE.toString()));
Statistics.incrementJVMgcCount(pgroup.getCounter(Stat.PARFOR_JVMGC_COUNT.toString()));
Statistics.incrementJVMgcTime(pgroup.getCounter(Stat.PARFOR_JVMGC_TIME.toString()));
Group cgroup =
runjob.getCounters().getGroup(CacheableData.CACHING_COUNTER_GROUP_NAME.toString());
CacheStatistics.incrementMemHits(
(int) cgroup.getCounter(CacheStatistics.Stat.CACHE_HITS_MEM.toString()));
CacheStatistics.incrementFSBuffHits(
(int) cgroup.getCounter(CacheStatistics.Stat.CACHE_HITS_FSBUFF.toString()));
CacheStatistics.incrementFSHits(
(int) cgroup.getCounter(CacheStatistics.Stat.CACHE_HITS_FS.toString()));
CacheStatistics.incrementHDFSHits(
(int) cgroup.getCounter(CacheStatistics.Stat.CACHE_HITS_HDFS.toString()));
CacheStatistics.incrementFSBuffWrites(
(int) cgroup.getCounter(CacheStatistics.Stat.CACHE_WRITES_FSBUFF.toString()));
CacheStatistics.incrementFSWrites(
(int) cgroup.getCounter(CacheStatistics.Stat.CACHE_WRITES_FS.toString()));
CacheStatistics.incrementHDFSWrites(
(int) cgroup.getCounter(CacheStatistics.Stat.CACHE_WRITES_HDFS.toString()));
CacheStatistics.incrementAcquireRTime(
cgroup.getCounter(CacheStatistics.Stat.CACHE_TIME_ACQR.toString()));
CacheStatistics.incrementAcquireMTime(
cgroup.getCounter(CacheStatistics.Stat.CACHE_TIME_ACQM.toString()));
CacheStatistics.incrementReleaseTime(
cgroup.getCounter(CacheStatistics.Stat.CACHE_TIME_RLS.toString()));
CacheStatistics.incrementExportTime(
cgroup.getCounter(CacheStatistics.Stat.CACHE_TIME_EXP.toString()));
}
// read all files of result variables and prepare for return
LocalVariableMap[] results = readResultFile(job, resultFile);
ret = new RemoteParForJobReturn(runjob.isSuccessful(), numTasks, numIters, results);
} catch (Exception ex) {
throw new DMLRuntimeException(ex);
} finally {
// remove created files
try {
MapReduceTool.deleteFileIfExistOnHDFS(new Path(taskFile), job);
MapReduceTool.deleteFileIfExistOnHDFS(new Path(resultFile), job);
} catch (IOException ex) {
throw new DMLRuntimeException(ex);
}
}
if (DMLScript.STATISTICS) {
long t1 = System.nanoTime();
Statistics.maintainCPHeavyHitters("MR-Job_" + jobname, t1 - t0);
}
return ret;
}
/**
* Pins a matrix variable into memory and returns the internal matrix block.
*
* @param varName variable name
* @return matrix block
* @throws DMLRuntimeException if DMLRuntimeException occurs
*/
public MatrixBlock getMatrixInput(String varName) throws DMLRuntimeException {
MatrixObject mo = getMatrixObject(varName);
return mo.acquireRead();
}
public void setMatrixOutput(String varName, MatrixBlock outputData) throws DMLRuntimeException {
MatrixObject mo = getMatrixObject(varName);
mo.acquireModify(outputData);
mo.release();
setVariable(varName, mo);
}
public void releaseMatrixInputForGPUInstruction(String varName) throws DMLRuntimeException {
MatrixObject mo = getMatrixObject(varName);
mo.getGPUObject().releaseInput();
}
/**
* Unpins a currently pinned matrix variable.
*
* @param varName variable name
* @throws DMLRuntimeException if DMLRuntimeException occurs
*/
public void releaseMatrixInput(String varName) throws DMLRuntimeException {
MatrixObject mo = getMatrixObject(varName);
mo.release();
}