QueryMemoryInitializer.cpp File Reference

#include "QueryMemoryInitializer.h"
#include "Execute.h"
#include "GpuInitGroups.h"
#include "Logger/Logger.h"
#include "OutputBufferInitialization.h"
#include "QueryEngine/QueryEngine.h"
#include "Shared/checked_alloc.h"
#include "StreamingTopN.h"
#include "Utils/FlatBuffer.h"

Include dependency graph for QueryMemoryInitializer.cpp:

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Namespaces
	anonymous_namespace{QueryMemoryInitializer.cpp}

Functions
void	anonymous_namespace{QueryMemoryInitializer.cpp}::check_total_bitmap_memory (const QueryMemoryDescriptor &query_mem_desc)
int64_t *	anonymous_namespace{QueryMemoryInitializer.cpp}::alloc_group_by_buffer (const size_t numBytes, RenderAllocatorMap *render_allocator_map, const size_t thread_idx, RowSetMemoryOwner *mem_owner)
int64_t	anonymous_namespace{QueryMemoryInitializer.cpp}::get_consistent_frag_size (const std::vector< uint64_t > &frag_offsets)
std::vector< int64_t >	anonymous_namespace{QueryMemoryInitializer.cpp}::get_consistent_frags_sizes (const std::vector< std::vector< uint64_t >> &frag_offsets)
std::vector< int64_t >	anonymous_namespace{QueryMemoryInitializer.cpp}::get_consistent_frags_sizes (const std::vector< Analyzer::Expr * > &target_exprs, const std::vector< int64_t > &table_frag_sizes)
std::vector< std::vector < int64_t > >	anonymous_namespace{QueryMemoryInitializer.cpp}::get_col_frag_offsets (const std::vector< Analyzer::Expr * > &target_exprs, const std::vector< std::vector< uint64_t >> &table_frag_offsets)
int	anonymous_namespace{QueryMemoryInitializer.cpp}::get_input_idx (RelAlgExecutionUnit const &ra_exe_unit, const shared::TableKey &outer_table_key)
	num_buffers_ (1)
	varlen_output_buffer_ (0)
	varlen_output_buffer_host_ptr_ (nullptr)
	count_distinct_bitmap_mem_ (0)
	count_distinct_bitmap_mem_bytes_ (0)
	count_distinct_bitmap_crt_ptr_ (nullptr)
	count_distinct_bitmap_host_mem_ (nullptr)
	device_allocator_ (device_allocator)
	thread_idx_ (0)
template<typename T >
int8_t *	anonymous_namespace{QueryMemoryInitializer.cpp}::initColumnarBuffer (T *buffer_ptr, const T init_val, const uint32_t entry_count)
void	anonymous_namespace{QueryMemoryInitializer.cpp}::eachAggregateTargetIdxOfType (std::vector< Analyzer::Expr * > const &target_exprs, SQLAgg const agg_type, std::function< void(Analyzer::AggExpr const *, size_t)> lambda)
void	anonymous_namespace{QueryMemoryInitializer.cpp}::compact_projection_buffer_for_cpu_columnar (const QueryMemoryDescriptor &query_mem_desc, int8_t *projection_buffer, const size_t projection_count)

Variables
int64_t	g_bitmap_memory_limit {8LL * 1000 * 1000 * 1000}
	query_mem_desc

Function Documentation

count_distinct_bitmap_crt_ptr_

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count_distinct_bitmap_host_mem_

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count_distinct_bitmap_mem_

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count_distinct_bitmap_mem_bytes_

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device_allocator_

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num_buffers_

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Referenced by thread_idx_().

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thread_idx_

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Definition at line 356 of file QueryMemoryInitializer.cpp.

References align_to_int64(), anonymous_namespace{QueryMemoryInitializer.cpp}::alloc_group_by_buffer(), CHECK_EQ, anonymous_namespace{QueryMemoryInitializer.cpp}::get_col_frag_offsets(), anonymous_namespace{QueryMemoryInitializer.cpp}::get_consistent_frags_sizes(), num_buffers_(), query_mem_desc, and target_exprs_to_infos().

                     {
  // Table functions output columnar, basically treat this as a projection
  const auto& consistent_frag_sizes = get_consistent_frags_sizes(frag_offsets);
  if (consistent_frag_sizes.empty()) {
    // No fragments in the input, no underlying buffers will be needed.
    return;
  }

  const size_t num_columns =
      query_mem_desc.getBufferColSlotCount();  // shouldn't we use getColCount() ???
  size_t total_group_by_buffer_size{0};
  for (size_t i = 0; i < num_columns; ++i) {
    auto ti = exe_unit.target_exprs[i]->get_type_info();
    if (ti.is_array()) {
      // See TableFunctionManager.h for info regarding flatbuffer
      // memory managment.
      auto slot_idx = query_mem_desc.getSlotIndexForSingleSlotCol(i);
      int64_t flatbuffer_size = query_mem_desc.getFlatBufferSize(slot_idx);
      total_group_by_buffer_size =
          align_to_int64(total_group_by_buffer_size + flatbuffer_size);
    } else {
      const size_t col_width = ti.get_size();
      const size_t group_buffer_size = num_rows_ * col_width;
      total_group_by_buffer_size =
          align_to_int64(total_group_by_buffer_size + group_buffer_size);
    }
  }

  CHECK_EQ(num_buffers_, size_t(1));
  auto group_by_buffer = alloc_group_by_buffer(
      total_group_by_buffer_size, nullptr, thread_idx_, row_set_mem_owner.get());
  group_by_buffers_.push_back(group_by_buffer);

  const auto column_frag_offsets =
      get_col_frag_offsets(exe_unit.target_exprs, frag_offsets);
  const auto column_frag_sizes =
      get_consistent_frags_sizes(exe_unit.target_exprs, consistent_frag_sizes);
  result_sets_.emplace_back(
      new ResultSet(target_exprs_to_infos(exe_unit.target_exprs, query_mem_desc),
                    /*col_lazy_fetch_info=*/{},
                    col_buffers,
                    column_frag_offsets,
                    column_frag_sizes,
                    device_type,
                    device_id,
                    ResultSet::fixupQueryMemoryDescriptor(query_mem_desc),
                    row_set_mem_owner_,
                    executor->blockSize(),
                    executor->gridSize()));
  result_sets_.back()->allocateStorage(reinterpret_cast<int8_t*>(group_by_buffer),
                                       init_agg_vals_);
}

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varlen_output_buffer_

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varlen_output_buffer_host_ptr_

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Variable Documentation

int64_t g_bitmap_memory_limit {8LL * 1000 * 1000 * 1000}

Definition at line 28 of file QueryMemoryInitializer.cpp.

Referenced by anonymous_namespace{QueryMemoryInitializer.cpp}::check_total_bitmap_memory(), CommandLineOptions::fillAdvancedOptions(), anonymous_namespace{GroupByAndAggregate.cpp}::init_count_distinct_descriptors(), and InValuesBitmap::InValuesBitmap().

query_mem_desc

Definition at line 347 of file QueryMemoryInitializer.cpp.

Referenced by TableFunctionManager::allocate_output_buffers(), SpeculativeTopNMap::asRows(), anonymous_namespace{Execute.cpp}::build_row_for_empty_input(), GroupByAndAggregate::codegen(), Executor::codegenJoinLoops(), QueryCompilationDescriptor::compile(), Executor::createKernels(), RelAlgExecutor::executeLogicalValues(), Executor::executeTableFunction(), Executor::executeUpdate(), ResultSet::fixupQueryMemoryDescriptor(), anonymous_namespace{ResultSetReduction.cpp}::get_matching_group_value_reduction(), GroupByAndAggregate::initQueryMemoryDescriptor(), TableFunctionExecutionContext::launchGpuCode(), query_group_by_template(), QueryExecutionContext::QueryExecutionContext(), ResultSetManager::reduce(), Executor::reduceMultiDeviceResultSets(), SqliteMemDatabase::runSelect(), and thread_idx_().