I honestly don't understand the meme with RPi clusters. For a little more money than 4 RPi 5's, you can find on eBay a 1U Dell server with a 32 core Epyc CPU and 64 GB memory. This gives you at least an order of magnitude more performance.
If people want to talk about Beowulf clusters in their homelab, they should at least be running compute nodes with a shoestring budget FDR Infiniband network, running Slurm+Lustre or k8s+OpenStack+Ceph or some other goodness. Spare me this doesnt-even-scale-linearly-to-four-slowass-nodes BS.
If people want to talk about Beowulf clusters in their homelab, they should at least be running compute nodes with a shoestring budget FDR Infiniband network, running Slurm+Lustre or k8s+OpenStack+Ceph or some other goodness. Spare me this doesnt-even-scale-linearly-to-four-slowass-nodes BS.