Abstract
Abstract While recognition of the advantages of heterogeneous
computing is steadily growing, the issues of programmability and
portability hinder its exploitation. The introduction of the
OpenCL standard was a major step forward in that it provides
code portability, but its interface is even more complex than
that of other approaches. In this paper, we present the
Heterogeneous Programming Library (HPL), which permits the
development of heterogeneous applications addressing both
portability and programmability while not sacrificing high
performance. This is achieved by means of an embedded language
and data types provided by the library with which generic
computations to be run in heterogeneous devices can be
expressed. A comparison in terms of programmability and
performance with OpenCL shows that both approaches offer very
similar performance, while outlining the programmability
advantages of HPL.
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