DeviceQueue.cpp

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// -------------------------------------------------------//
//
// SHAMROCK code for hydrodynamics
// Copyright (c) 2021-2026 Timothée David--Cléris <tim.shamrock@proton.me>
// SPDX-License-Identifier: CeCILL Free Software License Agreement v2.1
// Shamrock is licensed under the CeCILL 2.1 License, see LICENSE for more information
//
// -------------------------------------------------------//

 
#include "shambackends/DeviceQueue.hpp"
#include "shamcmdopt/env.hpp"
#include "shamcomm/logs.hpp"
#include <utility>
 
std::string SHAMROCK_WAIT_AFTER_SUBMIT = shamcmdopt::getenv_str_default_register(
    "SHAMROCK_WAIT_AFTER_SUBMIT", "0", "Make queues wait after submit (default: 0)");
 
namespace sham {
 
    auto build_queue = [](sycl::context &ctx, sycl::device &dev, bool in_order) -> sycl::queue {
        if (in_order) {
            return sycl::queue{ctx, dev, sycl::property::queue::in_order{}};
        } else {
            return sycl::queue{ctx, dev};
        }
    };
 
    auto parse_wait_after_submit = []() -> bool {
        bool ret = SHAMROCK_WAIT_AFTER_SUBMIT == "1";
 
        if (ret) {
            shamcomm::logs::warn_ln("Backends", "DeviceQueue :", "wait_after_submit is on !");
        }
 
        return ret;
    };
 
    bool env_var_wait_after_submit_set = parse_wait_after_submit();
 
    DeviceQueue::DeviceQueue(
        std::string queue_name, std::shared_ptr<DeviceContext> _ctx, bool in_order)
        : queue_name(std::move(queue_name)), ctx(std::move(_ctx)), in_order(in_order),
          q(build_queue(ctx->ctx, ctx->device->dev, in_order)),
          wait_after_submit(env_var_wait_after_submit_set) {}
 
} // namespace sham