Search results for: AL-GATHER

• Experimental investigations on adiabatic frictional pressure drops of R134a during flow in 5mm diameter channel

  Publication

  • R. Andrzejczyk
  • T. Muszyński
  • C. A. Dorao

  - EXPERIMENTAL THERMAL AND FLUID SCIENCE - Year 2017

  The article presents detailed two-phase adiabatic pressure drops data for refrigerant R134a at a saturation pressure of 5.5 bar corresponding to the saturation temperature of 19.4 °C. Study cases have been set for a mass flux varying from 100 to 500 kg/m2 s. The frictional pressure drop was characterized for the refrigerant R134a, for vapor qualities ranging from 0 to 1. Long-time thermal stability of test facility allowed to gather...

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• All-gather Algorithms Resilient to Imbalanced Process Arrival Patterns

  Publication

  • J. Proficz

  - ACM Transactions on Architecture and Code Optimization - Year 2021

  Two novel algorithms for the all-gather operation resilient to imbalanced process arrival patterns (PATs) are presented. The first one, Background Disseminated Ring (BDR), is based on the regular parallel ring algorithm often supplied in MPI implementations and exploits an auxiliary background thread for early data exchange from faster processes to accelerate the performed all-gather operation. The other algorithm, Background Sorted...

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