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

Example 1 with CLPlatform

use of com.jogamp.opencl.CLPlatform in project jmonkeyengine by jMonkeyEngine.

the class JoglContext method initOpenCL.

@SuppressWarnings("unchecked")
protected void initOpenCL() {
    logger.info("Initialize OpenCL with JOGL");
    //load platforms and devices
    StringBuilder platformInfos = new StringBuilder();
    ArrayList<JoclPlatform> platforms = new ArrayList<JoclPlatform>();
    for (CLPlatform p : CLPlatform.listCLPlatforms()) {
        platforms.add(new JoclPlatform(p));
    }
    platformInfos.append("Available OpenCL platforms:");
    for (int i = 0; i < platforms.size(); ++i) {
        JoclPlatform platform = platforms.get(i);
        platformInfos.append("\n * Platform ").append(i + 1);
        platformInfos.append("\n *   Name: ").append(platform.getName());
        platformInfos.append("\n *   Vendor: ").append(platform.getVendor());
        platformInfos.append("\n *   Version: ").append(platform.getVersion());
        platformInfos.append("\n *   Profile: ").append(platform.getProfile());
        platformInfos.append("\n *   Supports interop: ").append(platform.hasOpenGLInterop());
        List<JoclDevice> devices = platform.getDevices();
        platformInfos.append("\n *   Available devices:");
        for (int j = 0; j < devices.size(); ++j) {
            JoclDevice device = devices.get(j);
            platformInfos.append("\n *    * Device ").append(j + 1);
            platformInfos.append("\n *    *   Name: ").append(device.getName());
            platformInfos.append("\n *    *   Vendor: ").append(device.getVendor());
            platformInfos.append("\n *    *   Version: ").append(device.getVersion());
            platformInfos.append("\n *    *   Profile: ").append(device.getProfile());
            platformInfos.append("\n *    *   Compiler version: ").append(device.getCompilerVersion());
            platformInfos.append("\n *    *   Device type: ").append(device.getDeviceType());
            platformInfos.append("\n *    *   Compute units: ").append(device.getComputeUnits());
            platformInfos.append("\n *    *   Work group size: ").append(device.getMaxiumWorkItemsPerGroup());
            platformInfos.append("\n *    *   Global memory: ").append(device.getGlobalMemorySize()).append("B");
            platformInfos.append("\n *    *   Local memory: ").append(device.getLocalMemorySize()).append("B");
            platformInfos.append("\n *    *   Constant memory: ").append(device.getMaximumConstantBufferSize()).append("B");
            platformInfos.append("\n *    *   Supports double: ").append(device.hasDouble());
            platformInfos.append("\n *    *   Supports half floats: ").append(device.hasHalfFloat());
            platformInfos.append("\n *    *   Supports writable 3d images: ").append(device.hasWritableImage3D());
            platformInfos.append("\n *    *   Supports interop: ").append(device.hasOpenGLInterop());
        }
    }
    logger.info(platformInfos.toString());
    //choose devices
    PlatformChooser chooser = null;
    if (settings.getOpenCLPlatformChooser() != null) {
        try {
            chooser = (PlatformChooser) Class.forName(settings.getOpenCLPlatformChooser()).newInstance();
        } catch (Exception ex) {
            logger.log(Level.WARNING, "unable to instantiate custom PlatformChooser", ex);
        }
    }
    if (chooser == null) {
        chooser = new DefaultPlatformChooser();
    }
    List<? extends Device> choosenDevices = chooser.chooseDevices(platforms);
    List<CLDevice> devices = new ArrayList<>(choosenDevices.size());
    JoclPlatform platform = null;
    for (Device d : choosenDevices) {
        if (!(d instanceof JoclDevice)) {
            logger.log(Level.SEVERE, "attempt to return a custom Device implementation from PlatformChooser: {0}", d);
            return;
        }
        JoclDevice ld = (JoclDevice) d;
        if (platform == null) {
            platform = ld.getPlatform();
        } else if (platform != ld.getPlatform()) {
            logger.severe("attempt to use devices from different platforms");
            return;
        }
        devices.add(ld.getDevice());
    }
    if (devices.isEmpty()) {
        logger.warning("no devices specified, no OpenCL context created");
        return;
    }
    logger.log(Level.INFO, "chosen platform: {0}", platform.getName());
    logger.log(Level.INFO, "chosen devices: {0}", choosenDevices);
    //create context
    try {
        CLGLContext c = CLGLContext.create(GLContext.getCurrent(), devices.toArray(new CLDevice[devices.size()]));
        clContext = new com.jme3.opencl.jocl.JoclContext(c, (List<JoclDevice>) choosenDevices);
    } catch (Exception ex) {
        logger.log(Level.SEVERE, "Unable to create OpenCL context", ex);
        return;
    }
    logger.info("OpenCL context created");
}

Example 2 with CLPlatform

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

the class GlowServer method start.

/**
     * Starts this server.
     */
public void start() {
    // Determine console mode and start reading input
    consoleManager.startConsole(config.getBoolean(Key.USE_JLINE));
    consoleManager.startFile(config.getString(Key.LOG_FILE));
    if (getProxySupport()) {
        if (getOnlineMode()) {
            logger.warning("Proxy support is enabled, but online mode is enabled.");
        } else {
            logger.info("Proxy support is enabled.");
        }
    } else if (!getOnlineMode()) {
        logger.warning("The server is running in offline mode! Only do this if you know what you're doing.");
    }
    int openCLMajor = 1;
    int openCLMinor = 2;
    if (doesUseGPGPU()) {
        int maxGpuFlops = 0;
        int maxIntelFlops = 0;
        int maxCpuFlops = 0;
        CLPlatform bestPlatform = null;
        CLPlatform bestIntelPlatform = null;
        CLPlatform bestCpuPlatform = null;
        // gets the max flops device across platforms on the computer
        for (CLPlatform platform : CLPlatform.listCLPlatforms()) {
            if (platform.isAtLeast(openCLMajor, openCLMinor) && platform.isExtensionAvailable("cl_khr_fp64")) {
                for (CLDevice device : platform.listCLDevices()) {
                    if (device.getType() == CLDevice.Type.GPU) {
                        int flops = device.getMaxComputeUnits() * device.getMaxClockFrequency();
                        logger.info("Found " + device + " with " + flops + " flops");
                        if (device.getVendor().contains("Intel")) {
                            if (flops > maxIntelFlops) {
                                maxIntelFlops = flops;
                                logger.info("Device is best platform so far, on " + platform);
                                bestIntelPlatform = platform;
                            } else if (flops == maxIntelFlops) {
                                if (bestIntelPlatform != null && bestIntelPlatform.getVersion().compareTo(platform.getVersion()) < 0) {
                                    maxIntelFlops = flops;
                                    logger.info("Device tied for flops, but had higher version on " + platform);
                                    bestIntelPlatform = platform;
                                }
                            }
                        } else {
                            if (flops > maxGpuFlops) {
                                maxGpuFlops = flops;
                                logger.info("Device is best platform so far, on " + platform);
                                bestPlatform = platform;
                            } else if (flops == maxGpuFlops) {
                                if (bestPlatform != null && bestPlatform.getVersion().compareTo(platform.getVersion()) < 0) {
                                    maxGpuFlops = flops;
                                    logger.info("Device tied for flops, but had higher version on " + platform);
                                    bestPlatform = platform;
                                }
                            }
                        }
                    } else {
                        int flops = device.getMaxComputeUnits() * device.getMaxClockFrequency();
                        logger.info("Found " + device + " with " + flops + " flops");
                        if (flops > maxCpuFlops) {
                            maxCpuFlops = flops;
                            logger.info("Device is best platform so far, on " + platform);
                            bestCpuPlatform = platform;
                        } else if (flops == maxCpuFlops) {
                            if (bestCpuPlatform != null && bestCpuPlatform.getVersion().compareTo(platform.getVersion()) < 0) {
                                maxCpuFlops = flops;
                                logger.info("Device tied for flops, but had higher version on " + platform);
                                bestCpuPlatform = platform;
                            }
                        }
                    }
                }
            }
        }
        if (config.getBoolean(Key.GPGPU_ANY_DEVICE)) {
            if (maxGpuFlops - maxIntelFlops < 0 && maxCpuFlops - maxIntelFlops <= 0) {
                bestPlatform = bestIntelPlatform;
            } else if (maxGpuFlops - maxCpuFlops < 0 && maxIntelFlops - maxCpuFlops < 0) {
                bestPlatform = bestCpuPlatform;
            }
        } else {
            if (maxGpuFlops == 0) {
                if (maxIntelFlops == 0) {
                    logger.info("No Intel graphics found, best platform is the best CPU platform we could find...");
                    bestPlatform = bestCpuPlatform;
                } else {
                    logger.info("No dGPU found, best platform is the best Intel graphics we could find...");
                    bestPlatform = bestIntelPlatform;
                }
            }
        }
        if (bestPlatform == null) {
            isCLApplicable = false;
            logger.info("Your system does not meet the OpenCL requirements for Glowstone. See if driver updates are available.");
            logger.info("Required version: " + openCLMajor + '.' + openCLMinor);
            logger.info("Required extensions: [ cl_khr_fp64 ]");
        } else {
            OpenCL.initContext(bestPlatform);
        }
    }
    // Load player lists
    opsList.load();
    whitelist.load();
    nameBans.load();
    ipBans.load();
    setPort(config.getInt(Key.SERVER_PORT));
    setIp(config.getString(Key.SERVER_IP));
    try {
        LootingManager.load();
    } catch (Exception e) {
        GlowServer.logger.severe("Failed to load looting manager: ");
        e.printStackTrace();
    }
    // Start loading plugins
    new LibraryManager().run();
    loadPlugins();
    enablePlugins(PluginLoadOrder.STARTUP);
    // Create worlds
    String name = config.getString(Key.LEVEL_NAME);
    String seedString = config.getString(Key.LEVEL_SEED);
    boolean structs = getGenerateStructures();
    WorldType type = WorldType.getByName(getWorldType());
    if (type == null) {
        type = WorldType.NORMAL;
    }
    long seed = new Random().nextLong();
    if (!seedString.isEmpty()) {
        try {
            long parsed = Long.parseLong(seedString);
            if (parsed != 0) {
                seed = parsed;
            }
        } catch (NumberFormatException ex) {
            seed = seedString.hashCode();
        }
    }
    createWorld(WorldCreator.name(name).environment(Environment.NORMAL).seed(seed).type(type).generateStructures(structs));
    if (getAllowNether()) {
        checkTransfer(name, "_nether", Environment.NETHER);
        createWorld(WorldCreator.name(name + "_nether").environment(Environment.NETHER).seed(seed).type(type).generateStructures(structs));
    }
    if (getAllowEnd()) {
        checkTransfer(name, "_the_end", Environment.THE_END);
        createWorld(WorldCreator.name(name + "_the_end").environment(Environment.THE_END).seed(seed).type(type).generateStructures(structs));
    }
    // Finish loading plugins
    enablePlugins(PluginLoadOrder.POSTWORLD);
    commandMap.registerServerAliases();
    scheduler.start();
}