Hi,
Did anyone ever used a IBM pSeries 575 (clustered SMP system) ?
I might have access to such a machine, but I don't know if Radiance will compile and run on it. The system administrators warned me that this system differs from normal computers, so I thought I better check it with you first,
Cheers,
- iebele
It runs Unix, so I expect Radiance will compile and run on it, but it uses IBM POWER5+ processors, rather than x86s, so there may be some surprises.
Do you know what operating system the system administrators are using? According to IBM, administrators have a choice of AIX, Red Hat Linux, and SUSE Linux, or possibly all three in a virtualization mode.
Ref: http://www-03.ibm.com/systems/power/hardware/systemp/highend/575/index.html
On 2012-10-08 12:17:56 +0000, Iebele said:
pSeries 575
--
Randolph M. Fritz • [email protected]
Environmental Energy Technologies Division • Lawrence Berkeley Labs
Hi Randolph,
Thanks for your reply and the reference.
I have no access to the system now. The documentation says:
"Each node runs under one operating system (Linux: SLES11 SP1) and show a single memory image to the user programs."
I'' ll forward this message to one of the administrators, to find out whether they use Red Had or Suse.
- iebele
Op 12 okt. 2012, om 21:08 heeft Randolph M. Fritz het volgende geschreven:
On 2012-10-08 12:17:56 +0000, Iebele said:
pSeries 575
It runs Unix, so I expect Radiance will compile and run on it, but it uses IBM POWER5+ processors, rather than x86s, so there may be some surprises.
Do you know what operating system the system administrators are using? According to IBM, administrators have a choice of AIX, Red Hat Linux, and SUSE Linux, or possibly all three in a virtualization mode.
Ref: http://www-03.ibm.com/systems/power/hardware/systemp/highend/575/index.html
--
Randolph M. Fritz • [email protected]
Environmental Energy Technologies Division • Lawrence Berkeley Labs
Hi Randolph,
the Power architecture is well supported, both by Linux (e.g. Debian) and IBM's propietary systems. Radiance has been developed on a similar architecture (Power G4,G5) over the years, it is happy with Little/Big-endianess, so I would not expect problems.
I do not know how the virtualization is solved, probably you can get either one node with many available cores or many separate cores. Both is fine, as Radiance supports forking processes on one node (-N NCPUs) as well as distributing among machines (using e.g. ssh and shared ambient files). I have used ranimate in the past for cluster rendering (without ssh), which may be a possible (but not required) approach here:
http://larsgrobe.de/content/distributed-rendering-ranimate
Cheers, Lars.
It runs Unix, so I expect Radiance will compile and run on it, but it uses IBM POWER5+ processors, rather than x86s, so there may be some surprises.
Do you know what operating system the system administrators are using? According to IBM, administrators have a choice of AIX, Red Hat Linux, and SUSE Linux, or possibly all three in a virtualization mode.
Ref: http://www-03.ibm.com/systems/power/hardware/systemp/highend/575/index.html
SLES11 SP1 = SUSE Linux Enterprise Server 11, Service Pack one. It runs some patch of the 2.6.32 Linux kernel.
Lars, I know Radiance used to be extensively used on the PowerPC, but I'm wondering how much it still is. Is anyone running Radiance 4.1 or 4.2a on a POWER or PowerPC system?
Randolph
On 2012-10-13 09:47:46 +0000, Iebele said:
Hi Randolph,
Thanks for your reply and the reference.
I have no access to the system now. The documentation says:
"Each node runs under one operating system (Linux: SLES11 SP1) and show a single memory image to the user programs."I'' ll forward this message to one of the administrators, to find out whether they use Red Had or Suse.
- iebele
Op 12 okt. 2012, om 21:08 heeft Randolph M. Fritz het volgende geschreven:
On 2012-10-08 12:17:56 +0000, Iebele said:
pSeries 575
It runs Unix, so I expect Radiance will compile and run on it, but it uses IBM POWER5+ processors, rather than x86s, so there may be some surprises.
Do you know what operating system the system administrators are using? According to IBM, administrators have a choice of AIX, Red Hat Linux, and SUSE Linux, or possibly all three in a virtualization mode.
Ref: http://www-03.ibm.com/systems/power/hardware/systemp/highend/575/index.html> --> Randolph M. Fritz • [email protected]
Environmental Energy Technologies Division • Lawrence Berkeley Labs
--
Randolph M. Fritz • [email protected]
Environmental Energy Technologies Division • Lawrence Berkeley Labs