CompilationOptions.h

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/*
 * Copyright 2017 MapD Technologies, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef QUERYENGINE_COMPILATIONOPTIONS_H
#define QUERYENGINE_COMPILATIONOPTIONS_H

#include <vector>

enum class ExecutorDeviceType { CPU, GPU };

enum class ExecutorOptLevel { Default, LoopStrengthReduction, ReductionJIT };

enum class ExecutorExplainType { Default, Optimized };

enum class ExecutorDispatchMode { KernelPerFragment, MultifragmentKernel };

struct CompilationOptions {
  ExecutorDeviceType device_type;
  bool hoist_literals;
  ExecutorOptLevel opt_level;
  bool with_dynamic_watchdog;
  bool allow_lazy_fetch;
  bool filter_on_deleted_column{true};  // if false, ignore the delete column during table
                                        // scans. Primarily disabled for delete queries.
  ExecutorExplainType explain_type{ExecutorExplainType::Default};
  bool register_intel_jit_listener{false};

  static CompilationOptions makeCpuOnly(const CompilationOptions& in) {
    return CompilationOptions{ExecutorDeviceType::CPU,
                              in.hoist_literals,
                              in.opt_level,
                              in.with_dynamic_watchdog,
                              in.allow_lazy_fetch,
                              in.filter_on_deleted_column,
                              in.explain_type,
                              in.register_intel_jit_listener};
  }

  static CompilationOptions defaults(
      const ExecutorDeviceType device_type = ExecutorDeviceType::GPU) {
    return CompilationOptions{device_type,
                              true,
                              ExecutorOptLevel::Default,
                              false,
                              true,
                              true,
                              ExecutorExplainType::Default,
                              false};
  }
};

enum class ExecutorType { Native, Extern };

struct ExecutionOptions {
  bool output_columnar_hint;
  const bool allow_multifrag;
  const bool just_explain;  // return the generated IR for the first step
  const bool allow_loop_joins;
  const bool with_watchdog;  // Per work unit, not global.
  const bool jit_debug;
  const bool just_validate;
  const bool with_dynamic_watchdog;  // Per work unit, not global.
  const unsigned
      dynamic_watchdog_time_limit;  // Dynamic watchdog time limit, in milliseconds.
  const bool find_push_down_candidates;
  const bool just_calcite_explain;
  const double gpu_input_mem_limit_percent;  // punt to CPU if input memory exceeds this
  const bool allow_runtime_query_interrupt;
  const unsigned pending_query_interrupt_freq;
  ExecutorType executor_type = ExecutorType::Native;
  const std::vector<size_t> outer_fragment_indices{};

  static ExecutionOptions defaults() {
    return ExecutionOptions{false,
                            true,
                            false,
                            false,
                            true,
                            false,
                            false,
                            false,
                            0,
                            false,
                            false,
                            1.0,
                            false,
                            1000};
  }
};

#endif  // QUERYENGINE_COMPILATIONOPTIONS_H