Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Improving all-reduce collective operations for imbalanced process
  arrival patterns   Two new algorithms for the all-reduce operation, optimized for imbalanced
process arrival patterns (PAPs) are presented: (i) sorted linear tree (SLT),
(ii) pre-reduced ring (PRR) as well as a new way of on-line PAP detection,
including process arrival time (PAT) estimations and their distribution between
cooperating processes was introduced. The idea, pseudo-code, implementation
details, benchmark for performance evaluation and a real case example for
machine learning are provided. The results of the experiments were described
and analyzed, showing that the proposed solution has high scalability and
improved performance in comparison with the usually used ring and Rabenseifner
algorithms.

22
The categories of this paper are: chao-dyn
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an
24
The categories of this paper are: dg-ga
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics