XACC.cpp 4.91 KB
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/***********************************************************************************
 * Copyright (c) 2017, UT-Battelle
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *   * Neither the name of the <organization> nor the
 *     names of its contributors may be used to endorse or promote products
 *     derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Contributors:
 *   Initial API and implementation - Alex McCaskey
 *
 **********************************************************************************/
#include "XACC.hpp"

namespace xacc {

bool xaccFrameworkInitialized = false;
std::shared_ptr<CLIParser> xaccCLParser = std::make_shared<CLIParser>();

/**
 * This method should be called by
 * clients to initialize the XACC framework.
 * It should be called before using any of the
 * XACC API.
 */
void Initialize(int argc, char** argv) {
	auto tmpInitConsole = spdlog::stdout_logger_mt("xacc-console");

	XACCInfo("[xacc] Initializing XACC Framework");

	auto serviceRegistry = xacc::ServiceRegistry::instance();

	// Parse any user-supplied command line options
	xaccCLParser->parse(argc, argv);

	// Check that we have some
	auto s = serviceRegistry->getServices<Compiler>().size();
	auto a = serviceRegistry->getServices<Accelerator>().size();
	if (s == 0)
		XACCError("There are no Compiler instances available. Exiting.");
	if (a == 0)
		XACCError("There are no Accelerator instances available. Exiting.");

	XACCInfo(
			"[xacc::compiler] XACC has " + std::to_string(s) + " Compiler"
					+ ((s == 1 || s == 0) ? "" : "s") + " available.");
	XACCInfo(
			"[xacc::accelerator] XACC has " + std::to_string(a) + " Accelerator"
					+ ((s == 0 || s == 1) ? "" : "s") + " available.");

	// We're good if we make it here, so indicate that we've been
	// initialized
	xacc::xaccFrameworkInitialized = true;
}

void addCommandLineOption(const std::string& optionName,
		const std::string& optionDescription) {
	xaccCLParser->addStringOption(optionName, optionDescription);
}

std::shared_ptr<Accelerator> getAccelerator(const std::string& name) {
	if (!xacc::xaccFrameworkInitialized) {
		XACCError(
				"XACC not initialized before use. Please execute "
				"xacc::Initialize() before using API.");
	}
	auto acc = ServiceRegistry::instance()->getService<Accelerator>(name);
	if (acc) {
		acc->initialize();
		return acc;
	} else {
		XACCError(
				"Invalid Accelerator. Could not find " + name
						+ " in Accelerator Registry.");
	}
}

std::shared_ptr<Compiler> getCompiler(const std::string& name) {
	if (!xacc::xaccFrameworkInitialized) {
		XACCError(
				"XACC not initialized before use. Please execute "
				"xacc::Initialize() before using API.");
	}
	auto c = ServiceRegistry::instance()->getService<Compiler>(name);
	if (c) {
		return c;
	} else {
		XACCError(
				"Invalid Compiler. Could not find " + name
						+ " in Service Registry.");
	}
}

std::shared_ptr<IRTransformation> getIRTransformations(
		const std::string& name) {
	if (!xacc::xaccFrameworkInitialized) {
		XACCError(
				"XACC not initialized before use. Please execute "
				"xacc::Initialize() before using API.");
	}
	auto t = ServiceRegistry::instance()->getService<IRTransformation>(name);
	if (t) {
		return t;
	} else {
		XACCError(
				"Invalid IRTransformation. Could not find " + name
						+ " in Service Registry.");
	}

}

/**
 * This method should be called by clients to
 * clean up and finalize the XACC framework. It should
 * be called after using the XACC API.
 */
void Finalize() {
	XACCInfo(
			"\n[xacc] XACC Finalizing\n[xacc::compiler] Cleaning up Compiler Registry."
					"\n[xacc::accelerator] Cleaning up Accelerator Registry.");
	xacc::ServiceRegistry::instance()->destroy();
	xacc::xaccFrameworkInitialized = false;
}
}