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/* \file
   \brief Defines a math function
*/

#pragma once

#include <vector>

#include "hytlass/hytlass.h"

// HYTLASS Profiler includes
#include "enumerated_types.h"

// HYTLASS Library includes
#include "hytlass/library/library.h"

namespace hytlass {
namespace profiler {

/////////////////////////////////////////////////////////////////////////////////////////////////

/// Performance result object
struct PerformanceResult {

  /// Index of problem
  size_t problem_index;

  /// library::Provider
  library::Provider provider;

  /// Operation kind
  library::OperationKind op_kind;

  /// HYTLASS status result from kernels (success or failure)
  // Status does information on verification
  Status status;

  /// Outcome of verification (worst case verification result)
  Disposition disposition;
  
  /// Outcome of verification (all verification results)
  DispositionMap verification_map;

  /// Operation name
  std::string operation_name;

  /// Stringified vector of argument values
  std::vector<std::pair<std::string, std::string> > arguments;

  /// Number of bytes read or written
  int64_t bytes;

  /// Number of DL flops performed by the math function
  int64_t flops;

  /// Average runtime in ms
  double runtime;

  //
  // Members
  //

  /// Ctor
  PerformanceResult(): 
    problem_index(0),
    op_kind(library::OperationKind::kInvalid),
    provider(library::Provider::kInvalid), 
    disposition(Disposition::kNotRun),
    status(Status::kInvalid),
    bytes(0), 
    flops(0), 
    runtime(0)
  { }

  /// Returns true if the runtime is valid
  bool good() const {
    return runtime > 0;
  }

  /// Math throughput in units of GFLOP/s
  double gflops_per_sec() const {
    return double(flops) / runtime / 1.0e6;
  }

  /// memory bandwidth in units of GiB/s
  double gbytes_per_sec() const {
    return double(bytes) / double(1 << 30) / runtime * 1000.0;
  }

};

using PerformanceResultVector = std::vector<PerformanceResult>;

/////////////////////////////////////////////////////////////////////////////////////////////////

} // namespace profiler
} // namespace hytlass

