topic R80.20 - More then 40 Cores for CoreXL? in General Topics

R80.20 - More then 40 Cores for CoreXL?

HeikoAnkenbrand — Sun, 07 Apr 2019 17:05:44 GMT

Sk149973 describes the switching from kernel mode to user mode. Does this mean that I can use more than 40 cores in user mode for CoreXL?

- If so, this would also work with open sever?

- If yes, what is the maximum number of possible cores?

CUT>>>

There are a limited number of cores on 23900 appliances due to Linux/Intel limitations.

In kernel-mode FW, the maximum number of running cores is limited to 40 because of the Linux/Intel limitation of 2GB kernel memory, and because CoreXL architecture needs to load a large driver (~40MB) dozens of times (according to the CPU number, and up to 40 times). Newer platforms that contain more than 40 cores (e.g., 23900) are not fully utilized.

<<<CUT

Reference:

How to enable USFW (User-Mode Firewall) on a 23900 appliance

Re: R80.20 - More then 40 Cores for CoreXL?

PhoneBoy — Sat, 06 Apr 2019 23:15:53 GMT

Not aware of any supported Open Server that has more than 40 cores, but I imagine it would work there as well.

No one mentioned a number of core limit with usermode firewall.

Re: R80.20 - More then 40 Cores for CoreXL?

HeikoAnkenbrand — Sun, 07 Apr 2019 07:49:21 GMT

Thanks for this info.

Theoretically, we could have 56 cores in an HPDL380 G10.

2 x Intel® Xeon® Platinum 8180 Processor (28 cores per cpu)

But I didn't have this server in my hand yet:-)

Regards

Heiko

Re: R80.20 - More then 40 Cores for CoreXL?

HeikoAnkenbrand — Sun, 07 Apr 2019 17:03:50 GMT

Enable user mode:

> cpprod_util FwSetUsermode 1
> reboot

More to user mode here:

How to enable USFW (User-Mode Firewall) on a 23900 appliance