Keywords: C++ , library , parallel

Chapter 31. Parallel Mode
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## Chapter 31. Parallel Mode

The libstdc++ parallel mode is an experimental parallel implementation of many algorithms the C++ Standard Library.

Several of the standard algorithms, for instance `std::sort`, are made parallel using OpenMP annotations. These parallel mode constructs and can be invoked by explicit source declaration or by compiling existing sources with a specific compiler flag.

## Intro

The following library components in the include `numeric` are included in the parallel mode:

- `std::accumulate`

- `std::adjacent_difference`

- `std::inner_product`

- `std::partial_sum`

The following library components in the include `algorithm` are included in the parallel mode:

- `std::adjacent_find`

- `std::count`

- `std::count_if`

- `std::equal`

- `std::find`

- `std::find_if`

- `std::find_first_of`

- `std::for_each`

- `std::generate`

- `std::generate_n`

- `std::lexicographical_compare`

- `std::mismatch`

- `std::search`

- `std::search_n`

- `std::transform`

- `std::replace`

- `std::replace_if`

- `std::max_element`

- `std::merge`

- `std::min_element`

- `std::nth_element`

- `std::partial_sort`

- `std::partition`

- `std::random_shuffle`

- `std::set_union`

- `std::set_intersection`

- `std::set_symmetric_difference`

- `std::set_difference`

- `std::sort`

- `std::stable_sort`

- `std::unique_copy`

## Bibliography

Parallelization of Bulk Operations for STL Dictionaries . Johannes Singler. Leonor Frias. Copyright © 2007 . Workshop on Highly Parallel Processing on a Chip (HPPC) 2007. (LNCS) .

The Multi-Core Standard Template Library . Johannes Singler. Peter Sanders. Felix Putze. Copyright © 2007 . Euro-Par 2007: Parallel Processing. (LNCS 4641) .

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