Haiku and multiple cpu's

I have a dual core and I have had the same probluem and just thought it was a driver or a kernal issue.

They just raised the CPU limit a couple of days ago.

Just putting that out there here just in case someone missed that article. But of course if you still do not see all your cores you should definitely file a bug report.

I would recomaned getting a cheap AMD dual cpu socket MB and getting quad core opteron 3000 CPUs, then you would have your 8 cores and also lots of PCIe slots and RAM slots for additional upgrades down the road. All in all off Newegg or ebay it would probably cost around $450, for an older server motherboard and 16 gigs of RAM, and the 2 CPU's.

Haiku works correctly with up to 8 CPUs. If you have an Intel CPU with hyperthreading, this will count as 2 CPUs. Pawel has recently created a nightly release (as mentioned previously) with support for more CPUs.

Here is a quick and crude implementation of the Haiku Mandelbrot demo with support for 4 CPUs.
http://haikuware.com/directory/view-details/multimedia/video/miscellaneo...

It's nice to see somebody with the same PC using Haiku. Maybe we can collaborate on bug reports, by verifying hardware and system issues etc. before filing a ticket.

Well, Intel plans a 8-core CPU later this year. With hyper-threading it will look like 16 CPUs to the OS.

See: http://hothardware.com/News/Intel-Outs-HaswellE-and-Devils-Canyon-CPUs-R...

The new API is coming on-line just in time.

I've been installing nightly builds on my main machine which uses an older quad-core Xeon x3210 CPU & Haiku runs really smooth, even though i have it down-clocked to almost half its default frequency because of heating issues. Other than that i haven't had any problems running the nightly builds on older quad-core systems.

@Munchausen: try it! I've been waiting to hear a story about Haiku running on a high-end dual Xeon system, i bet GLteapot renders at 700+ fps lol.

I started to download the latest nightly to give it a go yesterday, but it was going to take 3 hours or so (quite why I don't know!). I left it running, and will try it next week...

Tried booting haiku yesterday but got a KDL when it couldn't find the USB drive it was booting from. I tired a few BIOS settings that didn't help, I'll try a CD next time.

@puppy-linux: they're quite similar threads. I don't really see how you can't see the differences by reading them? The other thread asks if haiku is written to take advantage of multi threading/multi core CPUs already, this one asks if anyone has gotten more than 4 CPUs working in haiku.

I see your point, and agree that it would be nice to have more apps making use of multi-threading, but I don't think the situation is much better on other OSs. At least on haiku you know certain things (each window) will get their own thread without any programming effort.

But there is a point or use for multiple cores anyway, and it's the same as for other OSs - supporting more cores/CPUs means you can run more software at once. You only need a web browser where each tab gets it's own thread/process (ala chrome) for multicore to be useful, or the use case where you have a web browser, video player, office, pdf reader, game etc open at the same time and may want to do even more in the background. It would be nice if more software was written multi-threaded, but having several cores is useful even if it isn't.

Also, I guess you were referring to other peoples "low efficiency exotic old" hardware, because my office workstation is brand new and very efficient ;) (I guess Xeon on the desktop is maybe a little exotic). I just want to see if haiku works on it really... we've just got support for >8 cores, let's test it on some bleeding edge hardware with 32 cores! :D

Not true for all.

I just got my i7-4770 machine 4 cores and 4 virtual cores.

Why? Because I want to write programs that just take too long on lessor machines, and then I hope to upgrade the CPU when Intel brings out it's 8 core model this fall.

Still this is for personal use, not many people needed all that CPU power, but some do.

PS. I also expect this machine to be last me for five(5) years or more unless there is a major break-thru.

It is alive!

I did run into one problem, I could not get it boot from USB.

But the moment I installed a SSD will Haiku-OS on it, it booted fine.

Time to start programming.

@Munchausen Could you press spacebar just as the haiku bootloader starts (right after the BIOS/EFI ends it will get you into the bootloader menu) and set it so you have debuglog printing to the screen enabled and see where its failing specifically? I imagine the Haiku developers would be interested in any info you could provide.

Note there are 2 screen printing modes for the debuglog one where it prints a page and waits for input and another where it prints continuously both can be useful.

Ah ic... thats interesting have you posted the USB error log? I know such things have been fixed in the past even for some of my computers.

Very strange about the cdboot.. have you tried burning different images to cd? There is the Anyboot image and also a reglar ISO which work differently.

Me and my big mouth. I took out the 80GB SSD that had the latest nightly on it that booted on my new machine and transferred in a 2TB drive that had a earlier Haiku on it (about a month old).

It does not work!

Fails at the same point as the USB stick (the hard drive icon with a division exception), I will try to do more work to see where the break is, still try the latest nightly before giving up.

Have someone tried to boot Haiku on HP WX8600 workstation? Considering the price of used systems on eBay it seems to be perfect multi-core PC (2x4-core Intel Xeon with 16-32Gb of RAM) for using with Haiku :)