Re: [vpp-dev] how to enable avx512 for all plugins and drivers?
There is no easy way. You can do node by node with ""set node function ” CLI. Problem is that in older versions of VPP we kept AVX512 off due to impact of power level transitions. In newer versions we have AVX512 enabled for sklylake X / cascadelake but with 256-bit register sizes as in such situations use of AVX-512 instructions doesn’t trigger power level transitions. So in your case turning on AVX512 will likely make things to be slower (assuming that you use skylake x, cascadelake). I suggest using newer version of VPP. — Damjan > On 08.11.2021., at 02:58, haiyan...@ilinkall.cn wrote: > > I'm using vpp 20.01, is there any way that I can enable it manually ? > > haiyan...@ilinkall.cn > > From: Damjan Marion via lists.fd.io > Date: 2021-11-05 22:25 > To: haiyan.li > CC: vpp-dev > Subject: Re: [vpp-dev] how to enable avx512 for all plugins and drivers? > > Based on your output looks like you are using quite old version of vpp. > In the recent versions of VPP AVX-512 instructions are used automatically if > CPU supports them… > > — > Damjan > >> On 05.11.2021., at 10:52, haiyan...@ilinkall.cn wrote: >> >> >> >> Dear vpp group: >> >>I changed dpdk-input node to avx512 as this message said >> "vpp-dev@lists.fd.io | A question about enable AVX512 instruction in VPP", >> but others still uses avx2 as below >> >> so how could i enable it for all the plugins and all the drivers? Thanks for >> any reply -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#20445): https://lists.fd.io/g/vpp-dev/message/20445 Mute This Topic: https://lists.fd.io/mt/86836650/21656 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
Re: [vpp-dev] how to enable avx512 for all plugins and drivers?
I'm using vpp 20.01, is there any way that I can enable it manually ? haiyan...@ilinkall.cn From: Damjan Marion via lists.fd.io Date: 2021-11-05 22:25 To: haiyan.li CC: vpp-dev Subject: Re: [vpp-dev] how to enable avx512 for all plugins and drivers? Based on your output looks like you are using quite old version of vpp. In the recent versions of VPP AVX-512 instructions are used automatically if CPU supports them… — Damjan On 05.11.2021., at 10:52, haiyan...@ilinkall.cn wrote: Dear vpp group: I changed dpdk-input node to avx512 as this message said "vpp-dev@lists.fd.io | A question about enable AVX512 instruction in VPP", but others still uses avx2 as below so how could i enable it for all the plugins and all the drivers? Thanks for any reply -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#20442): https://lists.fd.io/g/vpp-dev/message/20442 Mute This Topic: https://lists.fd.io/mt/86836650/21656 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
Re: [vpp-dev] how to enable avx512 for all plugins and drivers?
Based on your output looks like you are using quite old version of vpp. In the recent versions of VPP AVX-512 instructions are used automatically if CPU supports them… — Damjan > On 05.11.2021., at 10:52, haiyan...@ilinkall.cn wrote: > > > > Dear vpp group: > >I changed dpdk-input node to avx512 as this message said > "vpp-dev@lists.fd.io | A question about enable AVX512 instruction in VPP", > but others still uses avx2 as below > > so how could i enable it for all the plugins and all the drivers? Thanks for > any reply > > > > > -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#20436): https://lists.fd.io/g/vpp-dev/message/20436 Mute This Topic: https://lists.fd.io/mt/86836650/21656 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
[vpp-dev] how to enable avx512 for all plugins and drivers?
Dear vpp group: I changed dpdk-input node to avx512 as this message said "vpp-dev@lists.fd.io | A question about enable AVX512 instruction in VPP", but others still uses avx2 as below so how could i enable it for all the plugins and all the drivers? Thanks for any reply -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#20435): https://lists.fd.io/g/vpp-dev/message/20435 Mute This Topic: https://lists.fd.io/mt/86836650/21656 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
