Examples with CLProgram com.jogamp.opencl.CLProgram used on opensource projects

Example 1 with CLProgram

use of com.jogamp.opencl.CLProgram in project Glowstone by GlowstoneMC.

the class OpenCompute method getProgram.

/**
 * Returns an OpenCL program, loading it synchronously if it's not in cache.
 *
 * @param name the program filename
 * @return the OpenCL program, or null if there isn't a valid program with that name
 */
public static CLProgram getProgram(String name) {
    if (programs.containsKey(name)) {
        return programs.get(name);
    } else {
        if (openCLDir.exists() && openCLDir.isDirectory()) {
            File file = new File(openCLDir, name);
            if (file.exists()) {
                try (InputStream input = new FileInputStream(file)) {
                    CLProgram program = context.createProgram(input).build();
                    programs.put(name, program);
                    return program;
                } catch (IOException ex) {
                    GlowServer.logger.log(Level.WARNING, "Could not load custom OpenCL program.", ex);
                }
            } else {
                try (InputStream input = CLASS_LOADER.getResourceAsStream("builtin/opencl/" + name)) {
                    CLProgram program = context.createProgram(input).build();
                    programs.put(name, program);
                    return program;
                } catch (IOException ex) {
                    GlowServer.logger.log(Level.WARNING, "Could not load builtin OpenCL program.", ex);
                }
            }
        }
    }
    return null;
}

Example 2 with CLProgram

use of com.jogamp.opencl.CLProgram in project ffx by mjschnie.

the class Complex3DOpenCL method run.

@Override
public void run() {
    CLContext context = null;
    try {
        // Choose a platform.
        CLPlatform[] platforms = CLPlatform.listCLPlatforms();
        CLPlatform platform = platforms[0];
        // Prefer NV
        try {
            for (CLPlatform p : platforms) {
                if (p.getICDSuffix().equals("NV")) {
                    platform = p;
                    break;
                }
            }
        } catch (Exception e) {
        // ignore.
        }
        logger.info(String.format("   Platform: %s", platform));
        // Choose a device.
        CLDevice[] devices = platform.listCLDevices(CLDevice.Type.ACCELERATOR, CLDevice.Type.GPU);
        CLDevice device = devices[0];
        for (CLDevice dev : devices) {
            if (dev.getVendor().startsWith("NV")) {
                device = dev;
                break;
            }
        }
        logger.info(String.format("   Device:   %s", device));
        // Initialize the OpenCL Context
        context = CLContext.create(device);
        CLCommandQueue queue = device.createCommandQueue();
        // Allocate memory on the device.
        int bufferSize = len * 2;
        clData = context.createDoubleBuffer(bufferSize, Mem.READ_WRITE);
        DoubleBuffer doubleBuffer = clData.getBuffer();
        int MB = 1024 * 1024;
        logger.info(String.format("   FFT data buffer        [direct: %b, write: %b, size: %d MB]", doubleBuffer.isDirect(), !doubleBuffer.isReadOnly(), clData.getCLSize() / MB));
        clRecip = context.createDoubleBuffer(len, Mem.READ_WRITE);
        doubleBuffer = clRecip.getBuffer();
        logger.info(String.format("   Reciprocal data buffer [direct: %b, write: %b, size: %d MB]", doubleBuffer.isDirect(), !doubleBuffer.isReadOnly(), clRecip.getCLSize() / MB));
        // Initialize the OpenCL FFT library.
        setup();
        int[] dims = { nX, nY, nZ };
        planHandle = createDefaultPlan(context, Complex3DOpenCL_DIMENSION.Complex3DOpenCL_3D, dims);
        // Initialize the Reciprocal Space Multitply Kernal
        URL source = getClass().getClassLoader().getResource("ffx/numerics/fft/VectorMultiply.cl");
        InputStream input = source.openStream();
        CLProgram program = context.createProgram(input).build();
        // Get a reference to the kernel function with the name 'VectorMultiply'
        CLKernel kernel = program.createCLKernel("VectorMultiply");
        int localWorkSize = Math.min(device.getMaxWorkGroupSize(), 128);
        int globalWorkSize = roundUp(localWorkSize, len);
        synchronized (this) {
            while (!free) {
                if (mode != null) {
                    switch(mode) {
                        case RECIP:
                            clRecip.getBuffer().put(recip).rewind();
                            queue.putWriteBuffer(clRecip, true);
                            break;
                        case FFT:
                            clData.getBuffer().rewind();
                            queue.putWriteBuffer(clData, true);
                            if (!transferOnly) {
                                executeTransform(Complex3DOpenCL_DIRECTION.FORWARD, queue, clData, clData);
                                queue.finish();
                            }
                            clData.getBuffer().rewind();
                            queue.putReadBuffer(clData, true);
                            clData.getBuffer().rewind();
                            queue.finish();
                            break;
                        case CONVOLUTION:
                            queue.putWriteBuffer(clData, true);
                            // Forward FFT
                            if (!transferOnly) {
                                // long time = -System.nanoTime();
                                executeTransform(Complex3DOpenCL_DIRECTION.FORWARD, queue, clData, clData);
                                // Reciprocal Space Multiply
                                kernel.rewind().putArgs(clData, clRecip).putArg(len);
                                queue.put1DRangeKernel(kernel, 0, globalWorkSize, localWorkSize);
                                queue.putBarrier();
                                // Backward FFT
                                executeTransform(Complex3DOpenCL_DIRECTION.BACKWARD, queue, clData, clData);
                            // time += System.nanoTime();
                            // logger.info(String.format(" Compute Time %6.3f sec", time * 1.0e-9));
                            }
                            queue.putReadBuffer(clData, true);
                            break;
                        case IFFT:
                            queue.putWriteBuffer(clData, true);
                            if (!transferOnly) {
                                executeTransform(Complex3DOpenCL_DIRECTION.BACKWARD, queue, clData, clData);
                            }
                            queue.putReadBuffer(clData, true);
                    }
                    // Reset the mode to null and notify the calling thread.
                    mode = null;
                    notify();
                }
                // The OpenCL thread will wait until it's notified again.
                try {
                    wait();
                } catch (InterruptedException e) {
                    logger.severe(e.toString());
                }
            }
            queue.finish();
            clData.release();
            clRecip.release();
            destroyPlan();
            teardown();
            dead = true;
            notify();
        }
    } catch (IOException e) {
        logger.warning(e.toString());
    } finally {
        if (context != null) {
            context.release();
        }
    }
    logger.info(" OpenCL FFT/convolution thread is done.");
}

Example 3 with CLProgram

use of com.jogamp.opencl.CLProgram in project Glowstone by GlowstoneMC.

the class OverworldGenerator method generateChunkData.

@Override
public ChunkData generateChunkData(World world, Random random, int chunkX, int chunkZ, BiomeGrid biomes) {
    ChunkData chunkData = generateRawTerrain(world, chunkX, chunkZ);
    int cx = chunkX << 4;
    int cz = chunkZ << 4;
    SimplexOctaveGenerator octaveGenerator = ((SimplexOctaveGenerator) getWorldOctaves(world).get("surface"));
    int sizeX = octaveGenerator.getSizeX();
    int sizeZ = octaveGenerator.getSizeZ();
    if (((GlowServer) ServerProvider.getServer()).doesUseGraphicsCompute()) {
        CLKernel noiseGen = null;
        CLBuffer<FloatBuffer> noise = null;
        try {
            // Initialize OpenCL stuff and put args
            CLProgram program = OpenCompute.getProgram("net/glowstone/CLRandom.cl");
            int workSize = sizeX * octaveGenerator.getSizeY() * sizeZ;
            noise = OpenCompute.getContext().createFloatBuffer(workSize, CLMemory.Mem.WRITE_ONLY);
            noiseGen = OpenCompute.getKernel(program, "GenerateNoise");
            noiseGen.putArg(random.nextFloat()).putArg(random.nextFloat()).putArg(noise).putArg(workSize);
            // Calculate noise on GPU
            OpenCompute.getQueue().put1DRangeKernel(noiseGen, 0, OpenCompute.getGlobalSize(workSize), OpenCompute.getLocalSize()).putReadBuffer(noise, true);
            // Use noise
            for (int x = 0; x < sizeX; x++) {
                for (int z = 0; z < sizeZ; z++) {
                    if (GROUND_MAP.containsKey(biomes.getBiome(x, z))) {
                        GROUND_MAP.get(biomes.getBiome(x, z)).generateTerrainColumn(chunkData, world, random, cx + x, cz + z, biomes.getBiome(x, z), noise.getBuffer().get(x | z << 4));
                    } else {
                        groundGen.generateTerrainColumn(chunkData, world, random, cx + x, cz + z, biomes.getBiome(x, z), noise.getBuffer().get(x | z << 4));
                    }
                }
            }
        } finally {
            // Clean up
            if (noise != null) {
                ServerProvider.getServer().getScheduler().runTaskAsynchronously(null, noise::release);
            }
            if (noiseGen != null) {
                noiseGen.rewind();
            }
        }
    } else {
        double[] surfaceNoise = octaveGenerator.getFractalBrownianMotion(cx, cz, 0.5D, 0.5D);
        for (int x = 0; x < sizeX; x++) {
            for (int z = 0; z < sizeZ; z++) {
                if (GROUND_MAP.containsKey(biomes.getBiome(x, z))) {
                    GROUND_MAP.get(biomes.getBiome(x, z)).generateTerrainColumn(chunkData, world, random, cx + x, cz + z, biomes.getBiome(x, z), surfaceNoise[x | z << 4]);
                } else {
                    groundGen.generateTerrainColumn(chunkData, world, random, cx + x, cz + z, biomes.getBiome(x, z), surfaceNoise[x | z << 4]);
                }
            }
        }
    }
    return chunkData;
}

Example 4 with CLProgram

use of com.jogamp.opencl.CLProgram in project javacv by bytedeco.

the class JavaCVCL method buildKernels.

public CLKernel[] buildKernels(String compilerOptions, Class resourceClass, String resourceNames, String... kernelNames) {
    try {
        // load and compile program for the chosen device
        InputStream s;
        String[] a = resourceNames.split(":");
        if (a.length == 1) {
            s = resourceClass.getResourceAsStream(a[0]);
        } else {
            Vector<InputStream> vs = new Vector<InputStream>(a.length);
            for (String name : a) {
                vs.addElement(resourceClass.getResourceAsStream(name));
            }
            s = new SequenceInputStream(vs.elements());
        }
        CLProgram program = context.createProgram(s);
        // System.out.println("Building " + resourceNames + "...");
        program.build(compilerOptions);
        // System.out.println(program.getBuildLog());
        assert program.isExecutable();
        // create kernel and set function parameters
        CLKernel[] kernels = new CLKernel[kernelNames.length];
        for (int i = 0; i < kernelNames.length; i++) {
            kernels[i] = program.createCLKernel(kernelNames[i]);
        }
        return kernels;
    } catch (IOException ex) {
        throw (Error) new LinkageError(ex.toString()).initCause(ex);
    }
}