31–40 of 166 posts
Earlier quoted context omitted.
True. And with RPi4 having a 1000baseT, it’s not as painful as it seems. Perhaps even the driver can be coaxed into some form of DMA and MPI that is a bit lower latency than IP stack. With secondary IP layer on 802.11, it might actually work reasonably well.
Or use the PCIe mod and use an infiniband card for low latency and high thoughput.
I envy people like OP for their tenacity. I barely have time to follow what's happening in IT, much less get ahead of the pack in doing cools hacks like this.
I develop remotely on VPSes because I like to have an always-on box reachable from any client. I am wondering if a RP4 offers a similar experience at lower cost.
Does anyone use a RP for this?
Hijacking the thread: I develop remotely on VPSes because I like to have an always-on box reachable from any client. I am wondering if a RP4 offers a similar experience at lower cost. Does anyone use a RP for this?
Earlier quoted context omitted.
Wouldn't the gigabit LAN be a better fit for this? If you want to make a cluster, you need to make some custom hardware to connect to, that can facilitate the communication. At this point you're likely spending more that if you just bought a real desktop for more performance. I can see the fun factor in hacking the system together, though.
There are two ways of doing clusters - one is a message passing paradigm, which you can do over Ethernet (to an extent - I’d still take USB3 for 4x the bandwidth) - and the other is direct memory access a’la Cray. What really motivated me to do this hack is the relative abundance of stuff I can now plug into an FPGA :)
Hijacking the thread: I develop remotely on VPSes because I like to have an always-on box reachable from any client. I am wondering if a RP4 offers a similar experience at lower cost. Does anyone use a RP for this?
I do this with an RPi3 and it's doing good, so it's doable. It strongly depends on your setup and develeopment environment, though. Do you want VI to work over SSH or want full VNC access to a machine with Gnome and Eclipse? Or something in between like X forwarding? Also, is aarch64 even an option as a host system? (compilations, software availability etc.)
Then also a lot webpack, Docker: wondering if they would get the Pi stuttering when compiling/building? And if vim is still smooth then (which isn't the case with my 20$ vps).
That's really cool. I'm curious, would it be possible to use a modern GPU (running at 1x) on an ARM based board? Would the open source drivers that are part of the Kernel work out the box on ARM?
Hack’s creator here - it’s on my list of things to try. GPUs are notoriously hard to get to work on non-intel, having tried to get a few up on Alpha and Itaniums in the past. VideoBIOS expects to run and expects a well behaving Intel CPU to do the power-up. That said X can sometimes emulate these quite well. On ARM we’d also run into alignment issues and likely other quirks - but in principle...
http://bestbuyonlin.com/%E0%A6%B8%E0%A7%8D%E0%A6%AF%E0%A6%BE...
Earlier quoted context omitted.
I do this with an RPi3 and it's doing good, so it's doable. It strongly depends on your setup and develeopment environment, though. Do you want VI to work over SSH or want full VNC access to a machine with Gnome and Eclipse? Or something in between like X forwarding? Also, is aarch64 even an option as a host system? (compilations, software availability etc.)
I use tmux and vim over ssh. You mean Arch? Yeah why not. Then also a lot webpack, Docker: wondering if they would get the Pi stuttering when compiling/building? And if vim is still smooth then (which isn't the case with my 20$ vps).