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10.07.2017
with the original Raspberry Pi Model A, ranging from two to more than 250 nodes. That early 32-bit system had a single core running at 700MHz with 256MB of memory. You can build a cluster of five RPi3 nodes with 20
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17.05.2017
, ALLOCATABLE, TARGET :: DATA(:,:) ! Data to write
18 INTEGER :: RANK = 2 ! Dataset rank
19
20 CHARACTER(MPI_MAX_PROCESSOR_NAME) HOSTNAME
21 CHARACTER(LEN=100) :: FILENAME ! File name
22 CHARACTER(LEN=3) :: C
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21.03.2017
and binary data, can be used by parallel applications (MPI), has a large number of language plugins; and is fairly easy to use.
In a previous article, I introduced HDF5, focusing on the concepts and strengths
45%
22.02.2017
to build the HDF5 libraries since they will require an MPI library with MPI-IO support. MPI-IO is a low-level interface for carrying out parallel I/O. It gives you a great deal of flexibility but also
48%
25.01.2017
-dimensional array from one-dimensional arrays.
The use of coarrays can be thought of as opposite the way distributed arrays are used in MPI. With MPI applications, each rank or process has a local array; then
41%
15.12.2016
implemented the HPF extensions, but others did not. While the compilers were being written, a Message Passing Interface (MPI) standard for passing data between processors, even if they weren’t on the same node
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21.04.2016
to Greg about his background and some of his projects in general and about his latest initiative, Singularity, in particular. (Also see the article on Singularity.)
Jeff Layton: Hi Greg, tell me bit
42%
25.02.2016
straightforward. If a processor was operating at a fixed frequency of 2.0GHz, CPU utilization was the percentage of time the processor spent doing work. (Not doing work is idle.
) For 50% utilization, the processor
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14.01.2016
: https://en.wikipedia.org/wiki/NVM_Express
Intel P3700 SSD: http://www.newegg.com/Product/Product.aspx?Item=N82E16820167232&cm_re=Intel_P3700_SSD-_-20-167-232-_-Product
The Author
Jeff Layton has been in the HPC business
50%
24.09.2015
that is 80% parallelizable (20% is serial, primarily because of I/O). For one process, the wall clock time is assumed to be 1,000 seconds, which means that 200 seconds is the serial portion of the application