Examples with CublasPointer org.nd4j.linalg.jcublas.CublasPointer used on opensource projects

Example 6 with CublasPointer

use of org.nd4j.linalg.jcublas.CublasPointer in project nd4j by deeplearning4j.

the class JcublasLevel2 method dgemv.

@Override
protected void dgemv(char order, char TransA, int M, int N, double alpha, INDArray A, int lda, INDArray X, int incX, double beta, INDArray Y, int incY) {
    if (Nd4j.dataType() != DataBuffer.Type.DOUBLE)
        logger.warn("DOUBLE gemv called");
    Nd4j.getExecutioner().push();
    CudaContext ctx = allocator.getFlowController().prepareAction(Y, A, X);
    CublasPointer cAPointer = new CublasPointer(A, ctx);
    CublasPointer cBPointer = new CublasPointer(X, ctx);
    CublasPointer cCPointer = new CublasPointer(Y, ctx);
    cublasHandle_t handle = ctx.getHandle();
    synchronized (handle) {
        cublasSetStream_v2(new cublasContext(handle), new CUstream_st(ctx.getOldStream()));
        cublasDgemv_v2(new cublasContext(handle), convertTranspose(TransA), M, N, new DoublePointer(alpha), (DoublePointer) cAPointer.getDevicePointer(), lda, (DoublePointer) cBPointer.getDevicePointer(), incX, new DoublePointer(beta), (DoublePointer) cCPointer.getDevicePointer(), incY);
    }
    allocator.registerAction(ctx, Y, A, X);
    OpExecutionerUtil.checkForAny(Y);
}

Example 7 with CublasPointer

use of org.nd4j.linalg.jcublas.CublasPointer in project nd4j by deeplearning4j.

the class JcublasLevel1 method dscal.

@Override
protected void dscal(int N, double alpha, INDArray X, int incX) {
    if (Nd4j.dataType() != DataBuffer.Type.DOUBLE)
        logger.warn("DOUBLE scal called");
    Nd4j.getExecutioner().push();
    CudaContext ctx = allocator.getFlowController().prepareAction(X);
    CublasPointer xCPointer = new CublasPointer(X, ctx);
    cublasHandle_t handle = ctx.getHandle();
    synchronized (handle) {
        cublasSetStream_v2(new cublasContext(handle), new CUstream_st(ctx.getOldStream()));
        cublasDscal_v2(new cublasContext(handle), N, new DoublePointer(alpha), (DoublePointer) xCPointer.getDevicePointer(), incX);
    }
    allocator.registerAction(ctx, X);
    OpExecutionerUtil.checkForAny(X);
}

Example 8 with CublasPointer

use of org.nd4j.linalg.jcublas.CublasPointer in project nd4j by deeplearning4j.

the class JcublasLevel1 method idamax.

@Override
protected int idamax(int N, INDArray X, int incX) {
    if (Nd4j.dataType() != DataBuffer.Type.DOUBLE)
        logger.warn("DOUBLE imax called");
    Nd4j.getExecutioner().push();
    CudaContext ctx = allocator.getFlowController().prepareAction(null, X);
    int ret2;
    CublasPointer xCPointer = new CublasPointer(X, ctx);
    cublasHandle_t handle = ctx.getHandle();
    synchronized (handle) {
        cublasSetStream_v2(new cublasContext(handle), new CUstream_st(ctx.getOldStream()));
        IntPointer resultPointer = new IntPointer(new int[] { 0 });
        cublasIdamax_v2(new cublasContext(handle), N, (DoublePointer) xCPointer.getDevicePointer(), incX, resultPointer);
        ret2 = resultPointer.get();
    }
    allocator.registerAction(ctx, null, X);
    return ret2 - 1;
}

Example 9 with CublasPointer

use of org.nd4j.linalg.jcublas.CublasPointer in project nd4j by deeplearning4j.

the class JcublasLevel1 method sdot.

@Override
protected float sdot(int N, INDArray X, int incX, INDArray Y, int incY) {
    if (Nd4j.dataType() != DataBuffer.Type.FLOAT)
        logger.warn("FLOAT dot called");
    DataTypeValidation.assertSameDataType(X, Y);
    Nd4j.getExecutioner().push();
    CudaContext ctx = allocator.getFlowController().prepareAction(null, X, Y);
    float ret = 1f;
    CublasPointer xCPointer = new CublasPointer(X, ctx);
    CublasPointer yCPointer = new CublasPointer(Y, ctx);
    cublasHandle_t handle = ctx.getHandle();
    synchronized (handle) {
        long result = cublasSetStream_v2(new cublasContext(handle), new CUstream_st(ctx.getOldStream()));
        if (result != 0)
            throw new IllegalStateException("cublasSetStream failed");
        FloatPointer resultPointer = new FloatPointer(0.0f);
        result = cublasSdot_v2(new cublasContext(handle), N, (FloatPointer) xCPointer.getDevicePointer(), incX, (FloatPointer) yCPointer.getDevicePointer(), incY, resultPointer);
        ret = resultPointer.get();
    }
    allocator.registerAction(ctx, null, X, Y);
    return ret;
}

Example 10 with CublasPointer

use of org.nd4j.linalg.jcublas.CublasPointer in project nd4j by deeplearning4j.

the class JcublasLevel1 method sswap.

@Override
protected void sswap(int N, INDArray X, int incX, INDArray Y, int incY) {
    if (Nd4j.dataType() != DataBuffer.Type.FLOAT)
        logger.warn("FLOAT swap called");
    Nd4j.getExecutioner().push();
    CudaContext ctx = allocator.getFlowController().prepareAction(Y, X);
    CublasPointer xCPointer = new CublasPointer(X, ctx);
    CublasPointer yCPointer = new CublasPointer(Y, ctx);
    cublasHandle_t handle = ctx.getHandle();
    synchronized (handle) {
        cublasSetStream_v2(new cublasContext(handle), new CUstream_st(ctx.getOldStream()));
        cublasSswap_v2(new cublasContext(handle), N, (FloatPointer) xCPointer.getDevicePointer(), incX, (FloatPointer) yCPointer.getDevicePointer(), incY);
    }
    allocator.registerAction(ctx, Y, X);
    OpExecutionerUtil.checkForAny(Y);
}