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- W2155257563 abstract "We consider the problem of allocating and scheduling dense linear application on fully heterogeneous platforms made of CPUs and GPUs. More specifically, we focus on the Cholesky factorization since it exhibits the main features of such problems. Indeed, the relative performance of CPU and GPU highly depends on the sub-routine: GPUs are for instance much more efficient to process regular kernels such as matrix-matrix multiplications rather than more irregular kernels such as matrix factorization. In this context, one solution consists in relying on dynamic scheduling and resource allocation mechanisms such as the ones provided by PaRSEC or StarPU. In this paper we analyze the performance of dynamic schedulers based on both actual executions and simulations, and we investigate how adding static rules based on an offline analysis of the problem to their decision process can indeed improve their performance, up to reaching some improved theoretical performance bounds which we introduce." @default.
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- W2155257563 date "2015-05-01" @default.
- W2155257563 modified "2023-10-14" @default.
- W2155257563 title "Bridging the Gap between Performance and Bounds of Cholesky Factorization on Heterogeneous Platforms" @default.
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- W2155257563 doi "https://doi.org/10.1109/ipdpsw.2015.35" @default.
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