Skip to Main Content
High Performance Parallel I/O
book

High Performance Parallel I/O

by Prabhat, Quincey Koziol
October 2014
Intermediate to advanced content levelIntermediate to advanced
434 pages
13h 28m
English
Chapman and Hall/CRC
Content preview from High Performance Parallel I/O
160 High Performance Parallel I/O
0
PP
2
file access phase
file system
P
0
’s file domain P
2
’s file domain
a 2D global array
subarrays in the
file offset view of
0
P P
1
start
P
2
end
P
3
aggregate access region
Two−phase I/O
I/O aggregators
data partitioning of
file space
0
P P
1 0
P P
1 0
P P
1
P
2
P
3
P
2
P
3
end
disp
start
request aggregation phase
FIGURE 13.3: A 5 × 8 2D array partitioned among 4 MPI processes in a
block–block pattern and its data layout in the file. The data layout in the file
follows the array’s canonical order. The bottom part describes the two-phase
I/O operation carried out in MPI collective I/O.
At each checkpoint, the intention considers writing the 2D array as
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Heterogeneous System Architecture

Heterogeneous System Architecture

Wen-mei W. Hwu
Topics in Parallel and Distributed Computing

Topics in Parallel and Distributed Computing

Sushil K Prasad, Anshul Gupta, Arnold L Rosenberg, Alan Sussman, Charles C Weems
Embedded Computing for High Performance

Embedded Computing for High Performance

João Paiva Cardoso, José Figueiredo Coutinho, Pedro C. Diniz

Publisher Resources

ISBN: 9781466582347