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Warewulf Cluster Manager – Development and Run Time
18.07.2012
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[cut] . Notice that it also installs Perl, making the total size of the packages about 11MB, even though numactl itself is only 54KB. In the grand scheme of things, 11MB is not very much space
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File Compression for HPC
10.11.2021
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levels ranging from -7 , which is the fastest but least compression, to 22 , which is the slowest and greatest compression. According to the zstd site, the compression speeds vary greatly
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Error-correcting code memory keeps single-bit errors at bay
14.11.2013
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Lead Image © Igor Stevanovic, 123RF.com
Controller login2$ ls -s /sys/devices/system/edac/mc/mc0 total 0 0 ce_count 0 csrow1 0 csrow4 0 csrow7 0 reset_counters 0 size_mb 0 ce_noinfo_count 0 csrow2 0 csrow5 0 device 0 sdram
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Bringing old hardware back into the game
29.09.2020
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Lead Image © Lucy Baldwin, 123RF.com
and doubles the cache size (from 3 to 6MB), in exchange for a small drop in baseline clock speed – 2.3 to 2.2GHz (peak drops from 3.2 to 3.1GHz). Major Surgery Legend has it that no one has ever opened
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Aligning filesystem partitions
20.03.2014
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Lead Image © Lucy Baldwin, 123RF.com
access is aligned to internal sector size, so that should be your first consideration. Without further data, the rule of thumb adopted by Microsoft in Windows 7 of aligning to 1MB (2048x512 and 256x4096
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Simple, small-scale Kubernetes distributions for the edge
03.04.2024
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Lead Image © grafner, 123RF.com
on machines with only one CPU core and 512MB of RAM; the minimalist K3s setup itself only uses 250MB. As one of the radical cost-cutting measures, K3s dispenses with the I/O-intensive etcd database
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Installing and operating the Graylog SIEM solution
13.12.2018
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Lead Image © Leo Blanchette, 123RF.com
. The pwgen command generates a password and encrypts with sh256sum: pwgen -N 1 -s 100 echo -n | sha256sum The encrypted password is then assigned to the parameter root_password_sha2. Table 1 gives
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NVIDIA Announces Large Memory AI Supercomputer
08.06.2023
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barrier for memory accessible to GPUs over NVLink.” “NVIDIA DGX GH200 is the only AI supercomputer that offers a massive shared memory space of 144TB across 256 NVIDIA Grace Hopper Superchips, providing
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Certificate security
13.06.2016
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Lead Image © Jennifer Huls, 123RF.com
checks the public key for the hostname in question. The program checks whether the public key is the same as the entries in the SPKI fingerprints (SHA-256 hash) in the certificate chain. The connection
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Useful NFS Options for Tuning and Management
15.06.2016
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server has a large number of cores and a fair amount of memory, you can increase RPCNFSDCOUNT . I have seen 256 used on an NFS server with 16 cores and 128GB of memory, and it ran extremely well. Even

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