Java Code Examples for org.nd4j.linalg.compression.CompressionDescriptor#setCompressionAlgorithm()

The following examples show how to use org.nd4j.linalg.compression.CompressionDescriptor#setCompressionAlgorithm() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: NoOp.java    From nd4j with Apache License 2.0 6 votes vote down vote up 
@Override
protected CompressedDataBuffer compressPointer(DataBuffer.TypeEx srcType, Pointer srcPointer, int length,
                int elementSize) {

    CompressionDescriptor descriptor = new CompressionDescriptor();
    descriptor.setCompressionType(getCompressionType());
    descriptor.setOriginalLength(length * elementSize);
    descriptor.setCompressionAlgorithm(getDescriptor());
    descriptor.setOriginalElementSize(elementSize);
    descriptor.setCompressedLength(length * elementSize);
    descriptor.setNumberOfElements(length);

    BytePointer ptr = new BytePointer(length * elementSize);

    val perfD = PerformanceTracker.getInstance().helperStartTransaction();

    // this Pointer.memcpy is used intentionally. This method operates on host memory ALWAYS
    Pointer.memcpy(ptr, srcPointer, length * elementSize);

    PerformanceTracker.getInstance().helperRegisterTransaction(0, perfD, length * elementSize, MemcpyDirection.HOST_TO_HOST);

    CompressedDataBuffer buffer = new CompressedDataBuffer(ptr, descriptor);

    return buffer;
}
Example 2
Source File: Float16.java    From nd4j with Apache License 2.0 6 votes vote down vote up 
@Override
protected CompressedDataBuffer compressPointer(DataBuffer.TypeEx srcType, Pointer srcPointer, int length,
                int elementSize) {

    BytePointer ptr = new BytePointer(length * 2);
    CompressionDescriptor descriptor = new CompressionDescriptor();
    descriptor.setCompressedLength(length * 2);
    descriptor.setOriginalLength(length * elementSize);
    descriptor.setOriginalElementSize(elementSize);
    descriptor.setNumberOfElements(length);

    descriptor.setCompressionAlgorithm(getDescriptor());
    descriptor.setCompressionType(getCompressionType());

    CompressedDataBuffer buffer = new CompressedDataBuffer(ptr, descriptor);

    Nd4j.getNDArrayFactory().convertDataEx(srcType, srcPointer, DataBuffer.TypeEx.FLOAT16, ptr, length);

    return buffer;
}
Example 3
Source File: Uint8.java    From nd4j with Apache License 2.0 6 votes vote down vote up 
@Override
protected CompressedDataBuffer compressPointer(DataBuffer.TypeEx srcType, Pointer srcPointer, int length,
                int elementSize) {

    BytePointer ptr = new BytePointer(length);
    CompressionDescriptor descriptor = new CompressionDescriptor();
    descriptor.setCompressedLength(length * 1);
    descriptor.setOriginalLength(length * elementSize);
    descriptor.setOriginalElementSize(elementSize);
    descriptor.setNumberOfElements(length);

    descriptor.setCompressionAlgorithm(getDescriptor());
    descriptor.setCompressionType(getCompressionType());

    CompressedDataBuffer buffer = new CompressedDataBuffer(ptr, descriptor);

    Nd4j.getNDArrayFactory().convertDataEx(srcType, srcPointer, DataBuffer.TypeEx.UINT8, ptr, length);

    return buffer;
}
Example 4
Source File: Float8.java    From nd4j with Apache License 2.0 6 votes vote down vote up 
@Override
protected CompressedDataBuffer compressPointer(DataBuffer.TypeEx srcType, Pointer srcPointer, int length,
                int elementSize) {

    BytePointer ptr = new BytePointer(length);
    CompressionDescriptor descriptor = new CompressionDescriptor();
    descriptor.setCompressedLength(length * 1);
    descriptor.setOriginalLength(length * elementSize);
    descriptor.setOriginalElementSize(elementSize);
    descriptor.setNumberOfElements(length);

    descriptor.setCompressionAlgorithm(getDescriptor());
    descriptor.setCompressionType(getCompressionType());

    CompressedDataBuffer buffer = new CompressedDataBuffer(ptr, descriptor);

    Nd4j.getNDArrayFactory().convertDataEx(srcType, srcPointer, DataBuffer.TypeEx.FLOAT8, ptr, length);

    return buffer;
}
Example 5
Source File: Int16.java    From nd4j with Apache License 2.0 6 votes vote down vote up 
@Override
protected CompressedDataBuffer compressPointer(DataBuffer.TypeEx srcType, Pointer srcPointer, int length,
                int elementSize) {

    BytePointer ptr = new BytePointer(length * 2);
    CompressionDescriptor descriptor = new CompressionDescriptor();
    descriptor.setCompressedLength(length * 2);
    descriptor.setOriginalLength(length * elementSize);
    descriptor.setOriginalElementSize(elementSize);
    descriptor.setNumberOfElements(length);

    descriptor.setCompressionAlgorithm(getDescriptor());
    descriptor.setCompressionType(getCompressionType());

    CompressedDataBuffer buffer = new CompressedDataBuffer(ptr, descriptor);

    Nd4j.getNDArrayFactory().convertDataEx(srcType, srcPointer, DataBuffer.TypeEx.INT16, ptr, length);

    return buffer;
}
Example 6
Source File: Int8.java    From nd4j with Apache License 2.0 6 votes vote down vote up 
@Override
protected CompressedDataBuffer compressPointer(DataBuffer.TypeEx srcType, Pointer srcPointer, int length,
                int elementSize) {

    BytePointer ptr = new BytePointer(length);
    CompressionDescriptor descriptor = new CompressionDescriptor();
    descriptor.setCompressedLength(length * 1);
    descriptor.setOriginalLength(length * elementSize);
    descriptor.setOriginalElementSize(elementSize);
    descriptor.setNumberOfElements(length);

    descriptor.setCompressionAlgorithm(getDescriptor());
    descriptor.setCompressionType(getCompressionType());

    CompressedDataBuffer buffer = new CompressedDataBuffer(ptr, descriptor);

    Nd4j.getNDArrayFactory().convertDataEx(srcType, srcPointer, DataBuffer.TypeEx.INT8, ptr, length);

    return buffer;
}
Example 7
Source File: NoOp.java    From deeplearning4j with Apache License 2.0 6 votes vote down vote up 
@Override
protected CompressedDataBuffer compressPointer(DataTypeEx srcType, Pointer srcPointer, int length,
                                               int elementSize) {

    CompressionDescriptor descriptor = new CompressionDescriptor();
    descriptor.setCompressionType(getCompressionType());
    descriptor.setOriginalLength(length * elementSize);
    descriptor.setCompressionAlgorithm(getDescriptor());
    descriptor.setOriginalElementSize(elementSize);
    descriptor.setCompressedLength(length * elementSize);
    descriptor.setNumberOfElements(length);

    BytePointer ptr = new BytePointer(length * elementSize);

    val perfD = PerformanceTracker.getInstance().helperStartTransaction();

    // this Pointer.memcpy is used intentionally. This method operates on host memory ALWAYS
    Pointer.memcpy(ptr, srcPointer, length * elementSize);

    PerformanceTracker.getInstance().helperRegisterTransaction(0, perfD, length * elementSize, MemcpyDirection.HOST_TO_HOST);

    CompressedDataBuffer buffer = new CompressedDataBuffer(ptr, descriptor);

    return buffer;
}
Example 8
Source File: CudaFlexibleThreshold.java    From nd4j with Apache License 2.0 5 votes vote down vote up 
@Override
public DataBuffer compress(DataBuffer buffer) {
    INDArray temp = Nd4j.createArrayFromShapeBuffer(buffer, Nd4j.getShapeInfoProvider().createShapeInformation(new int[]{1, (int) buffer.length()}));
    double max = temp.amaxNumber().doubleValue();

    int cntAbs = temp.scan(Conditions.absGreaterThanOrEqual(max - (max * threshold))).intValue();

    long originalLength = buffer.length() * Nd4j.sizeOfDataType(buffer.dataType());
    int compressedLength = cntAbs + 3;
    // first 3 elements contain header
    IntPointer pointer = new IntPointer(compressedLength);
    pointer.put(0, cntAbs);
    pointer.put(1, (int) buffer.length());
    pointer.put(2, Float.floatToIntBits(threshold)); // please note, this value will be ovewritten anyway

    CompressionDescriptor descriptor = new CompressionDescriptor();
    descriptor.setCompressedLength(compressedLength * 4); // sizeOf(INT)
    descriptor.setOriginalLength(originalLength);
    descriptor.setOriginalElementSize(Nd4j.sizeOfDataType(buffer.dataType()));
    descriptor.setNumberOfElements(buffer.length());

    descriptor.setCompressionAlgorithm(getDescriptor());
    descriptor.setCompressionType(getCompressionType());

    CompressedDataBuffer cbuff = new CompressedDataBuffer(pointer, descriptor);

    Nd4j.getNDArrayFactory().convertDataEx(getBufferTypeEx(buffer), buffer.addressPointer(), DataBuffer.TypeEx.FTHRESHOLD, pointer, buffer.length());

    Nd4j.getAffinityManager().tagLocation(buffer, AffinityManager.Location.HOST);

    return cbuff;
}
Example 9
Source File: CpuFlexibleThreshold.java    From nd4j with Apache License 2.0 5 votes vote down vote up 
@Override
public DataBuffer compress(DataBuffer buffer) {
    INDArray temp = Nd4j.createArrayFromShapeBuffer(buffer, Nd4j.getShapeInfoProvider().createShapeInformation(new int[]{1, (int) buffer.length()}).getFirst());
    double max = temp.amaxNumber().doubleValue();

    int cntAbs = temp.scan(Conditions.absGreaterThanOrEqual(max - (max * threshold))).intValue();

    long originalLength = buffer.length() * Nd4j.sizeOfDataType(buffer.dataType());
    int compressedLength = cntAbs + 4;
    // first 3 elements contain header
    IntPointer pointer = new IntPointer(compressedLength);
    pointer.put(0, cntAbs);
    pointer.put(1, (int) buffer.length());
    pointer.put(2, Float.floatToIntBits(threshold)); // please note, this value will be ovewritten anyway
    pointer.put(3, 0);

    CompressionDescriptor descriptor = new CompressionDescriptor();
    descriptor.setCompressedLength(compressedLength * 4); // sizeOf(INT)
    descriptor.setOriginalLength(originalLength);
    descriptor.setOriginalElementSize(Nd4j.sizeOfDataType(buffer.dataType()));
    descriptor.setNumberOfElements(buffer.length());

    descriptor.setCompressionAlgorithm(getDescriptor());
    descriptor.setCompressionType(getCompressionType());

    CompressedDataBuffer cbuff = new CompressedDataBuffer(pointer, descriptor);

    Nd4j.getNDArrayFactory().convertDataEx(getBufferTypeEx(buffer), buffer.addressPointer(), DataBuffer.TypeEx.FTHRESHOLD, pointer, buffer.length());

    Nd4j.getAffinityManager().tagLocation(buffer, AffinityManager.Location.HOST);

    return cbuff;
}
Example 10
Source File: CpuThreshold.java    From nd4j with Apache License 2.0 5 votes vote down vote up 
@Override
public DataBuffer compress(DataBuffer buffer) {
    INDArray temp = Nd4j.createArrayFromShapeBuffer(buffer, Nd4j.getShapeInfoProvider().createShapeInformation(new int[]{1, (int) buffer.length()}).getFirst());
    MatchCondition condition = new MatchCondition(temp, Conditions.absGreaterThanOrEqual(threshold));
    int cntAbs = Nd4j.getExecutioner().exec(condition, Integer.MAX_VALUE).getInt(0);


    //log.info("density ratio: {}", String.format("%.2f", cntAbs * 100.0f / buffer.length()));

    if (cntAbs < 2)
        return null;

    long originalLength = buffer.length() * Nd4j.sizeOfDataType(buffer.dataType());
    int compressedLength = cntAbs + 4;
    // first 3 elements contain header
    IntPointer pointer = new IntPointer(compressedLength);
    pointer.put(0, cntAbs);
    pointer.put(1, (int) buffer.length());
    pointer.put(2, Float.floatToIntBits(threshold));
    pointer.put(3, 0);

    CompressionDescriptor descriptor = new CompressionDescriptor();
    descriptor.setCompressedLength(compressedLength * 4); // sizeOf(INT)
    descriptor.setOriginalLength(originalLength);
    descriptor.setOriginalElementSize(Nd4j.sizeOfDataType(buffer.dataType()));
    descriptor.setNumberOfElements(buffer.length());

    descriptor.setCompressionAlgorithm(getDescriptor());
    descriptor.setCompressionType(getCompressionType());



    CompressedDataBuffer cbuff = new CompressedDataBuffer(pointer, descriptor);

    Nd4j.getNDArrayFactory().convertDataEx(getBufferTypeEx(buffer), buffer.addressPointer(), DataBuffer.TypeEx.THRESHOLD, pointer, buffer.length());

    Nd4j.getAffinityManager().tagLocation(buffer, AffinityManager.Location.HOST);

    return cbuff;
}
Example 11
Source File: CpuFlexibleThreshold.java    From deeplearning4j with Apache License 2.0 5 votes vote down vote up 
@Override
public DataBuffer compress(DataBuffer buffer) {
    INDArray temp = Nd4j.createArrayFromShapeBuffer(buffer, Nd4j.getShapeInfoProvider().createShapeInformation(new long[]{1, buffer.length()}, DataType.INT).getFirst());
    double max = temp.amaxNumber().doubleValue();

    int cntAbs = temp.scan(Conditions.absGreaterThanOrEqual(max - (max * threshold))).intValue();

    long originalLength = buffer.length() * Nd4j.sizeOfDataType(buffer.dataType());
    int compressedLength = cntAbs + 4;
    // first 3 elements contain header
    IntPointer pointer = new IntPointer(compressedLength);
    pointer.put(0, cntAbs);
    pointer.put(1, (int) buffer.length());
    pointer.put(2, Float.floatToIntBits(threshold)); // please note, this value will be ovewritten anyway
    pointer.put(3, 0);

    CompressionDescriptor descriptor = new CompressionDescriptor();
    descriptor.setCompressedLength(compressedLength * 4); // sizeOf(INT)
    descriptor.setOriginalLength(originalLength);
    descriptor.setOriginalElementSize(Nd4j.sizeOfDataType(buffer.dataType()));
    descriptor.setNumberOfElements(buffer.length());

    descriptor.setCompressionAlgorithm(getDescriptor());
    descriptor.setCompressionType(getCompressionType());

    CompressedDataBuffer cbuff = new CompressedDataBuffer(pointer, descriptor);

    Nd4j.getNDArrayFactory().convertDataEx(getBufferTypeEx(buffer), buffer.addressPointer(), DataTypeEx.FTHRESHOLD, pointer, buffer.length());

    Nd4j.getAffinityManager().tagLocation(buffer, AffinityManager.Location.HOST);

    return cbuff;
}
Example 12
Source File: CpuThreshold.java    From deeplearning4j with Apache License 2.0 5 votes vote down vote up 
@Override
public DataBuffer compress(DataBuffer buffer) {
    INDArray temp = Nd4j.createArrayFromShapeBuffer(buffer, Nd4j.getShapeInfoProvider().createShapeInformation(new long[]{1, buffer.length()}, buffer.dataType()).getFirst());
    MatchCondition condition = new MatchCondition(temp, Conditions.absGreaterThanOrEqual(threshold));
    int cntAbs = Nd4j.getExecutioner().exec(condition).getInt(0);


    //log.info("density ratio: {}", String.format("%.2f", cntAbs * 100.0f / buffer.length()));

    if (cntAbs < 2)
        return null;

    long originalLength = buffer.length() * Nd4j.sizeOfDataType(buffer.dataType());
    int compressedLength = cntAbs + 4;
    // first 3 elements contain header
    IntPointer pointer = new IntPointer(compressedLength);
    pointer.put(0, cntAbs);
    pointer.put(1, (int) buffer.length());
    pointer.put(2, Float.floatToIntBits(threshold));
    pointer.put(3, 0);

    CompressionDescriptor descriptor = new CompressionDescriptor();
    descriptor.setCompressedLength(compressedLength * 4); // sizeOf(INT)
    descriptor.setOriginalLength(originalLength);
    descriptor.setOriginalElementSize(Nd4j.sizeOfDataType(buffer.dataType()));
    descriptor.setNumberOfElements(buffer.length());

    descriptor.setCompressionAlgorithm(getDescriptor());
    descriptor.setCompressionType(getCompressionType());



    CompressedDataBuffer cbuff = new CompressedDataBuffer(pointer, descriptor);

    Nd4j.getNDArrayFactory().convertDataEx(getBufferTypeEx(buffer), buffer.addressPointer(), DataTypeEx.THRESHOLD, pointer, buffer.length());

    Nd4j.getAffinityManager().tagLocation(buffer, AffinityManager.Location.HOST);

    return cbuff;
}
Example 13
Source File: NativeOpExecutioner.java    From nd4j with Apache License 2.0 4 votes vote down vote up 
@Override
public INDArray thresholdEncode(INDArray input, double threshold, Integer boundary) {

    MatchCondition condition = new MatchCondition(input, Conditions.absGreaterThanOrEqual(threshold));
    int cntAbs = Nd4j.getExecutioner().exec(condition, Integer.MAX_VALUE).getInt(0);

    if (cntAbs < 2)
        return null;

    if (boundary != null)
        cntAbs = Math.min(cntAbs, boundary);

    DataBuffer buffer = input.data();

    long originalLength = buffer.length() * Nd4j.sizeOfDataType(buffer.dataType());
    int compressedLength = cntAbs + 4;
    // first 3 elements contain header

    DataBuffer encodedBuffer = Nd4j.getMemoryManager().getCurrentWorkspace() == null ? Nd4j.getDataBufferFactory().createInt(4+cntAbs, false) : Nd4j.getDataBufferFactory().createInt(4+cntAbs, false, Nd4j.getMemoryManager().getCurrentWorkspace());

    encodedBuffer.put(0, cntAbs);
    encodedBuffer.put(1, (int) buffer.length());
    encodedBuffer.put(2, Float.floatToIntBits((float) threshold));

    // format id
    encodedBuffer.put(3, ThresholdCompression.FLEXIBLE_ENCODING);

    CompressionDescriptor descriptor = new CompressionDescriptor();
    descriptor.setCompressedLength(compressedLength * 4); // sizeOf(INT)
    descriptor.setOriginalLength(originalLength);
    descriptor.setOriginalElementSize(Nd4j.sizeOfDataType(buffer.dataType()));
    descriptor.setNumberOfElements(buffer.length());

    descriptor.setCompressionAlgorithm("THRESHOLD");
    descriptor.setCompressionType(CompressionType.LOSSLESS);

    //CompressedDataBuffer cbuff = new CompressedDataBuffer(pointer, descriptor);

    Nd4j.getNDArrayFactory().convertDataEx(AbstractCompressor.getBufferTypeEx(buffer), buffer.addressPointer(), DataBuffer.TypeEx.THRESHOLD, encodedBuffer.addressPointer(), buffer.length());

    Nd4j.getAffinityManager().tagLocation(buffer, AffinityManager.Location.HOST);

    return Nd4j.createArrayFromShapeBuffer(encodedBuffer, input.shapeInfoDataBuffer());
}