Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dynamic load balancing with enhanced shared-memory parallelism for
  particle-in-cell codes   Furthering our understanding of many of today's interesting problems in
plasma physics---including plasma based acceleration and magnetic reconnection
with pair production due to quantum electrodynamic effects---requires
large-scale kinetic simulations using particle-in-cell (PIC) codes. However,
these simulations are extremely demanding, requiring that contemporary PIC
codes be designed to efficiently use a new fleet of exascale computing
architectures. To this end, the key issue of parallel load balance across
computational nodes must be addressed. We discuss the implementation of dynamic
load balancing by dividing the simulation space into many small, self-contained
regions or "tiles," along with shared-memory (e.g., OpenMP) parallelism both
over many tiles and within single tiles. The load balancing algorithm can be
used with three different topologies, including two space-filling curves. We
tested this implementation in the code OSIRIS and show low overhead and
improved scalability with OpenMP thread number on simulations with both uniform
load and severe load imbalance. Compared to other load-balancing techniques,
our algorithm gives order-of-magnitude improvement in parallel scalability for
simulations with severe load imbalance issues.

23
The categories of this paper are: solv-int
16
The categories of this paper are: stat
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
27
The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat