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If you compile software on an expensive supercomputer, it’s a good idea to select the languages and compilers with particular care. We report on tried-and-proved tools used on Super ... , built by IBM at a cost of around EUR135 million, has 19 compute islands with approximately 8,200 cores each, and six newer islands with 14,300 cores each. It achieves a speed of around 6 petaFLOPS (10 ... If you compile software on an expensive supercomputer, it’s a good idea to select the languages and compilers with particular care. We report on tried-and-proved tools used on Super

.py  CPU ALL:  1.0  %  CPU0    4.1%  CPU1    2.0%  CPU2    0.0%  CPU3    0.0%  CPU4    0.0%  CPU5    0.0%  CPU6    0.0%  CPU7    2.0%  CPU ALL:    user:      0.7%  nice:    0.0%    system:    0.2%  idle

wkB/s avgrq-sz avgqu-sz await r_await w_await svctm %util sda 2.00 8.00 2.00 9500.00 16.00 151948.00 31.99 1.07 0.11 4.00 0.11 0.09 88.40 If your read or write

advantages: S3QL. ... 16384 Nov 10 10:00 lost+found 4 drwxr-xr-x. 3 root root 4096 Nov 10 10:00 .. 4 -rw-r--r-- 1 root root 294 Nov 10 10:07 s3ql_passphrase 4 -rw-r--r-- 1 root root 243 Nov 10 10:07 s3ql_seq_no_1 4 -rw ... advantages: S3QL. ... S3QL Filesystem for HPC Storage

| 0| 0.00%| # Compute the kinetic energy 202| 50| 0.000184059| 3.68118e-06| 0.00%| kinetic = 0.0 203| 200| 0.000753641| 3.76821e-06| 0.00%| for k in range(0, d

record size, (2) sequential read testing with 1MB record size, and (3) random write and read (4KB). In running these tests, I wanted to see what block layer information ioprof revealed. The system I

buffered disk reads: 616 MB in 3.00 seconds = 205.03 MB/sec $ hdparm -T /dev/sda /dev/sda: Timing cached reads: 6292 MB in 2.00 seconds = 3153.09 MB/sec If this were a spinning disk, you would also

The U.S. Department of Energy’s Innovative and Novel Computational Impact on Theory and Experiment program (INCITE) is seeking proposals for research projects that will run on the DOE’s ... US Department of Energy’s INCITE Seeks Proposals for 2019

, ioengine=libaio, iodepth=32 fio-3.12 Starting 1 process Jobs: 1 (f=1): [w(1)][100.0%][w=475MiB/s][w=122k IOPS][eta 00m:00s] test: (groupid=0, jobs=1): err= 0: pid=1634: Mon Oct 14 22:18:59 2019   write: IOPS=118k, BW=463MiB/s

(512 MB) copied, 49.1424 s, 10.4 MB/s If you want to empty the read and write cache for benchmark purposes, you can do so using: sync; echo 3 > /proc/sys/vm/drop_caches Sequential access