[dpdk-users] Issue while running more than 64 core

[dpdk-users] Issue while running more than 64 core

[jayachandran.subramanian]

Hi,
I am running DPDK on 96 core machine (4 E7 CPUs with 24 cores each) ,we unable to utilize more than 64 core on 96 CPU server.

CLI : AuthEngine --dpdk-pmd --network-stack native -c64 --host-ipv4-addr 10.165.*.* --gw-ipv4-addr 10.165.*.* --netmask-ipv4-addr 255.255.255.*

Error : Failed to bootstrap AuthEngine: _Base_bitset::_M_do_to_ulong


Please find the LSCPU details

[ bin]$ lscpu
Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                96
On-line CPU(s) list:   0-95
Thread(s) per core:    1
Core(s) per socket:    24
Socket(s):             4
NUMA node(s):          4
Vendor ID:             GenuineIntel
CPU family:            6
Model:                 79
Model name:            Intel(R) Xeon(R) CPU E7-8890 v4 @ 2.20GHz
Stepping:              1
CPU MHz:               1830.554
BogoMIPS:              4396.69
Virtualization:        VT-x
L1d cache:             32K
L1i cache:             32K
L2 cache:              256K
L3 cache:              61440K
NUMA node0 CPU(s):     0-23
NUMA node1 CPU(s):     24-47
NUMA node2 CPU(s):     48-71
NUMA node3 CPU(s):     72-95

Please let us know the resolution
Thanks
Jay

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Re: [dpdk-users] Issue while running more than 64 core

[Stephen Hemminger]

On Thu, 22 Sep 2016 12:07:17 +0000
<jayachandran.subramanian@wipro.com> wrote:

> Hi,
> I am running DPDK on 96 core machine (4 E7 CPUs with 24 cores each) ,we unable to utilize more than 64 core on 96 CPU server.
> 
> CLI : AuthEngine --dpdk-pmd --network-stack native -c64 --host-ipv4-addr 10.165.*.* --gw-ipv4-addr 10.165.*.* --netmask-ipv4-addr 255.255.255.*
> 
> Error : Failed to bootstrap AuthEngine: _Base_bitset::_M_do_to_ulong

This error is not from the DPDK code base, it is some proprietary code you are using.
Fix your own code, or if you bought it from someone complain to them.

Probably they code is trying to fit more than 64 CPU's into an unsigned long bitmask.