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Execution models where multiple instances of a single program run simultaneously across hardware lanes.
Distinct from Programming Models: Focuses on the SPMD model specifically, distinct from general shared-memory or point-to-point models.
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ISPC is a vectorizing compiler and SIMD parallel programming language that implements a single program multiple data model. It serves as a toolchain for translating C-based code with parallel extensions into optimized machine code for various CPU and GPU architectures using an LLVM backend. The compiler is designed for cross-platform SIMD toolchain support, generating specialized instruction sets for x86 SSE/AVX, ARM NEON, and Intel GPU from a single source. It features a runtime dispatch mechanism that selects the most efficient hardware-specific implementation for the current system during
Provides a programming model with parallel extensions to run many program instances simultaneously on vector hardware.