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18%
Warewulf 4 – Environment Modules
20.03.2023
Home »  HPC  »  Articles  » 
.exe   QUAD_MPI   FORTRAN90/MPI version   Estimate an integral of f(x) from A to B.   f(x) = 50 / (pi * ( 2500 * x * x + 1 ) )     A        =    0.00000       B        =    10.0000       N        =      9999999
18%
Useful NFS Options for Tuning and Management
15.06.2016
Home »  HPC  »  Articles  » 
client and server TCP stacks. In this article, I've broken the list of tuning options into three groups: (1) NFS performance tuning options, (2) system tuning options, and (3) NFS management/policy options
18%
ASCII-based monitoring tools
30.05.2021
Home »  Archive  »  2021  »  Issue 63: Autom...  » 
Lead Image © tele52, 123RF.com
A long time ago, I was a system administrator for a couple of HPC systems, but I also inherited two Hewlett-Packard (HP) N-class servers (mainframes). Along with two WORM storage units, these were
18%
Manage status messages in CouchDB with MapReduce
27.09.2024
Home »  Archive  »  2024  »  Issue 83: Storage  » 
Photo by Austin Distel on Unsplash
Design Document with Views { "_id": "_design/queries", "_rev": "6-856a5c52b1a9f33e136b7f044b14a8e6", "language": "javascript", "views": { "by-timestamp": { "map": "function (doc) {\n
18%
Kernel and driver development for the Linux kernel
07.10.2014
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
Lead Image © psdesign1, Fotolia.com
_string; 08 09 static int prochello_show( struct seq_file *m, void *v ) 10 { 11 int error = 0; 12 13 error = seq_printf( m, "%s\n", output_string); 14 return error; 15 } 16 17 static int prochello
18%
Tuning SSD RAID for optimal performance
09.08.2015
Home »  Archive  »  2015  »  Issue 28: SSD RAID  » 
Lead Image © ELEN, Fotolia.com
capacity is available in RAID 10, but with many random writes, you see major benefits compared with RAID 5. Figure 3 clearly shows the weakness of RAID 5 in terms of write IOPS. Likewise, the increased
18%
OpenACC – Parallelizing Loops
09.01.2019
Home »  HPC  »  Articles  » 
3: Gang Execution Fortran C !$acc parallel    do i=1,n       ! do something    enddo !$acc end parallel     #pragma acc parallel {    for (int i=0; i < n
18%
Setting up SSL connections on Apache 2
18.07.2013
Home »  Archive  »  2013  »  Issue 15: What’...  » 
pnphoto, 123RF
SHA256 SHA384 SHA384 Table 2 Aliases for SSLCipherSuite Abbreviation Meaning SSLv3 All algorithms supported by SSL 3.0 TLSv1
18%
Moving HPC to the Cloud
19.10.2012
Home »  HPC  »  Articles  » 
is US$ 3.1/hour. Thus, using the small usage case (80 cores, 4GB of RAM per core, and basic storage of 500GB) would cost US$ 24.00/hour (10 Eight Extra Large Instances). The larger usage case (256 cores
18%
Detect failures and ensure high availability
22.05.2023
Home »  Archive  »  2023  »  Issue 75: Teamwork  » 
Photo by Tim Foster on Unsplash
from ubu22042-2 (10.0.0.62): icmp_seq=2 ttl=64 time=0.524 ms 64 bytes from ubu22042-2 (10.0.0.62): icmp_seq=3 ttl=64 time=0.496 ms ^C --- ubu22042-2 ping statistics --- 3 packets transmitted, 3 received

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