CU2CL: A CUDA-to-OpenCL Translator for Multi- and Many-Core Architectures

The use of graphics processing units (GPUs) in high-performance parallel computing continues to become more prevalent, often as part of a heterogeneous system. For years, CUDA has been the de facto programming environment for nearly all general-purpose GPU (GPGPU) applications. In spite of this, the...

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Vydané v:2011 IEEE 17th International Conference on Parallel and Distributed Systems s. 300 - 307
Hlavní autori: Martinez, G., Gardner, M., Wu-chun Feng
Médium: Konferenčný príspevok..
Jazyk:English
Vydavateľské údaje: IEEE 01.12.2011
Predmet:
abstract syntax tree
Clang
compiler
CUDA
Graphics processing unit
Instruction sets
Kernel
Libraries
Memory management
OpenCL
Programming
Runtime
source-to-source translation
ISBN:1457718758, 9781457718755
ISSN:1521-9097
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Abstract The use of graphics processing units (GPUs) in high-performance parallel computing continues to become more prevalent, often as part of a heterogeneous system. For years, CUDA has been the de facto programming environment for nearly all general-purpose GPU (GPGPU) applications. In spite of this, the framework is available only on NVIDIA GPUs, traditionally requiring reimplementation in other frameworks in order to utilize additional multi- or many-core devices. On the other hand, OpenCL provides an open and vendor-neutral programming environment and runtime system. With implementations available for CPUs, GPUs, and other types of accelerators, OpenCL therefore holds the promise of a "write once, run anywhere" ecosystem for heterogeneous computing. Given the many similarities between CUDA and OpenCL, manually porting a CUDA application to OpenCL is typically straightforward, albeit tedious and error-prone. In response to this issue, we created CU2CL, an automated CUDA-to-OpenCL source-to-source translator that possesses a novel design and clever reuse of the Clang compiler framework. Currently, the CU2CL translator covers the primary constructs found in CUDA runtime API, and we have successfully translated many applications from the CUDA SDK and Rodinia benchmark suite. The performance of the automatically translated applications via CU2CL is on par with their manually ported counterparts.
AbstractList The use of graphics processing units (GPUs) in high-performance parallel computing continues to become more prevalent, often as part of a heterogeneous system. For years, CUDA has been the de facto programming environment for nearly all general-purpose GPU (GPGPU) applications. In spite of this, the framework is available only on NVIDIA GPUs, traditionally requiring reimplementation in other frameworks in order to utilize additional multi- or many-core devices. On the other hand, OpenCL provides an open and vendor-neutral programming environment and runtime system. With implementations available for CPUs, GPUs, and other types of accelerators, OpenCL therefore holds the promise of a "write once, run anywhere" ecosystem for heterogeneous computing. Given the many similarities between CUDA and OpenCL, manually porting a CUDA application to OpenCL is typically straightforward, albeit tedious and error-prone. In response to this issue, we created CU2CL, an automated CUDA-to-OpenCL source-to-source translator that possesses a novel design and clever reuse of the Clang compiler framework. Currently, the CU2CL translator covers the primary constructs found in CUDA runtime API, and we have successfully translated many applications from the CUDA SDK and Rodinia benchmark suite. The performance of the automatically translated applications via CU2CL is on par with their manually ported counterparts.
Author Martinez, G.
Gardner, M.
Wu-chun Feng
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  givenname: M.
  surname: Gardner
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  email: mkg@vt.edu
  organization: Virginia Tech, Biacksburg, VA, USA
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  surname: Wu-chun Feng
  fullname: Wu-chun Feng
  email: wfeng@vt.edu
  organization: Dept. of Comput. Sci., Virginia Tech, Blacksburg, VA, USA
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SubjectTerms abstract syntax tree
Clang
compiler
CUDA
Graphics processing unit
Instruction sets
Kernel
Libraries
Memory management
OpenCL
Programming
Runtime
source-to-source translation
Title CU2CL: A CUDA-to-OpenCL Translator for Multi- and Many-Core Architectures
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