RAJA Features

The following sections describe the main RAJA features. They are intended to introduce users to the features and basic usage and also to provide a syntax reference guide. The sections contain links to RAJA tutorial materials that provide detailed examples of usage.

• Elements of Loop Execution
  • Simple Loops (RAJA::forall)
  • Complex Loops (RAJA::kernel)
  • Hierarchical loops (RAJA::launch)
  • Multi-dimensional loops using simple loop APIs (RAJA::CombiningAdapter)
• Policies
  • RAJA Loop/Kernel Execution Policies
  • RAJA IndexSet Execution Policies
  • Parallel Region Policies
  • Reduction Policies
  • MultiReduction Policies
  • Atomic Policies
  • Local Array Memory Policies
  • RAJA Kernel Execution Policies
• Indices, Segments, and IndexSets
  • Indices
  • Segments and IndexSets
• View and Layout
  • RAJA Views
  • RAJA Layouts
  • Make Permuted View
  • RAJA Index Mapping
  • RAJA Atomic Views
  • RAJA View/Layouts Bounds Checking
• Reduction Operations
  • Reduction Types
  • Reduction Policies
  • Runtime Policy Selection
  • Reduction Examples
  • Reduction Example with Differing Reduction and Loop Execution Policies
  • Reducer Helper Utilities
  • Experimental Reduction Interface
• MultiReduction Operations
  • MultiReduction Types
  • Runtime Policy Selection
  • MultiReduction Examples
  • MultiReduction Policies
• Atomic Operations
  • Atomic Operations
  • CUDA Atomics Architecture Dependencies
  • DESUL Atomics Support
• Scan Operations
  • Scan Operations
  • RAJA Inclusive Scans
  • RAJA Exclusive Scans
  • RAJA Scan Operators
• Sort Operations
  • Sort Operations
  • RAJA Unstable Sorts
  • RAJA Stable Sorts
  • RAJA Comparison Operators
• Resources
  • Type-Erasure
  • Memory Operations
  • Kernel Execution and Resources
  • Events
  • Example
• Local Array
  • Memory Policies
• Loop Tiling
• WorkGroup
  • Policies
  • Arguments
  • Allocators
  • WorkPool
  • WorkGroup
  • WorkSite
• Vectorization (SIMD/SIMT)
  • Why Are We Doing This?
  • Register
  • Vector Register
  • Tensor Register
  • Matrix Registers
• JIT Compilation (Proteus + RAJA)
  • Enabling JIT in a RAJA build
  • Marking a kernel for JIT
• Messages
  • How to manage messages?
  • Application considerations
• Plugins
  • Using RAJA Plugins
  • Creating Plugins For RAJA