.. _program_listing_file_SeQuant_domain_eval_eval_result.cpp:

Program Listing for File eval_result.cpp
========================================

|exhale_lsh| :ref:`Return to documentation for file <file_SeQuant_domain_eval_eval_result.cpp>` (``SeQuant/domain/eval/eval_result.cpp``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   #include <SeQuant/domain/eval/eval_result.hpp>
   
   namespace sequant {
   
   EvalResult::id_t EvalResult::next_id() noexcept {
     static std::atomic<id_t> grand_type_id = 0;
     return ++grand_type_id;
   }
   
   bool EvalResult::has_value() const noexcept { return value_.has_value(); }
   
   void log_ta_tensor_host_memory_use(madness::World& world,
                                      std::string_view label) {
   #if defined(TA_TENSOR_MEM_PROFILE) && defined(SEQUANT_EVAL_TRACE)
     auto logger = Logger::instance();
     if (logger->log_level_eval < 3) return;
     std::vector<std::uint64_t> hwsize(world.size(), 0);
     std::vector<std::uint64_t> currsize(world.size(), 0);
     std::vector<std::uint64_t> actsize(world.size(), 0);
     hwsize[world.rank()] =
         TA::hostEnv::instance()->host_allocator_getActualHighWatermark();
     currsize[world.rank()] =
         TA::hostEnv::instance()->host_allocator().getCurrentSize();
     actsize[world.rank()] =
         TA::hostEnv::instance()->host_allocator().getActualSize();
     world.gop.sum(hwsize.data(), hwsize.size());
     world.gop.sum(currsize.data(), currsize.size());
     world.gop.sum(actsize.data(), actsize.size());
   
     std::ostringstream oss;
     oss << label << ": TA_TENSOR_MEM_PROFILE allocation statistics (MiB):\n";
     oss << std::setw(5) << "rank"  //
         << std::setw(12) << "hw"   //
         << std::setw(12) << "cur"  //
         << std::setw(12) << "act"  //
         << '\n';                   //
     oss << "--------------------------------------------\n";
     std::uint64_t total = 0;
     for (auto rank = 0; rank != world.size(); ++rank) {
       oss << std::setw(5) << rank                         //
           << std::setw(12) << hwsize[rank] / (1 << 20)    //
           << std::setw(12) << currsize[rank] / (1 << 20)  //
           << std::setw(12) << actsize[rank] / (1 << 20)   //
           << '\n';
       total += currsize[rank] / (1 << 20);
     }
     oss << std::setw(5) << "total"  //
         << std::setw(12) << ""      //
         << std::setw(12) << total   //
         << std::setw(12) << ""      //
         << '\n';
     oss << "--------------------------------------------" << std::endl;
     write_log(logger, oss.str());
   #endif
   }
   }  // namespace sequant