[Users] Torus2q routing engine and vlarb weight choise

[Black.S]

Thanks for reply
I use only one QoS level.
Correct me please.

1) Is that config is right for 3D torus ?

qos_ca_vlarb_high 0:4,1:0,2:0,3:0,4:0,5:0,6:0,7:0
qos_ca_vlarb_low 0:4,1:4,2:0,3:0,4:0,5:0,6:0,7:0

qos_swe_vlarb_high**0:4,1:0,2:0,3:0*,*4:0,5:0,6:0,7:0     # because 
Torus use VL0-3
qos_swe_vlarb_low 0:4,1:4,2:0,3:0,4:0,5:0,6:0,7:0

or this right  ?
qos_vlarb_high *0:4,1:4,2:4,3:4*,4:0,5:0,6:0,7:0
qos_vlarb_low *0:4,1:4,2:4,3:4*,4:0,5:0,6:0,7:0

qos_swe_vlarb_high*0:4,1:4,2:4,3:4*,4:0,5:0,6:0,7:0     # because Torus 
use VL0-3
qos_swe_vlarb_low *0:4,1:4,2:4,3:4*,4:0,5:0,6:0,7:0 2)


2) And still Which weight prefer for VL0-3 ? Why not prefer weight 255 ?

Or perhaps that I do not understand ?

Thanks all


04.08.2016 20:26, Hal Rosenstock пишет:
> On links between end ports and peer switch, only 2 VLs max are needed 
> (depending on whether 1 or 2 QoS levels are in use). Interswitch links 
> require 4 VLs per QoS level.
>
> With the config you are using, t2q is only warning that resources 
> (buffers) are being wasted on unused VLs. It's up to you whether to do 
> more config of QoS to get better buffer use and eliminate this warning 
> message.
>
> On Thu, Aug 4, 2016 at 12:09 PM, B S <black.s52 at yandex.com 
> <mailto:black.s52 at yandex.com>> wrote:
>
>     Hello all
>     I can't understand some torus2q options.May be anybody explain me ?
>     In the Internet I found some options for torus
>
>     qos_max_vls 8       # its clear for use 8 vl
>     qos_high_limit 0.   # its cleasr for processing only 1 message in
>     high table
>     qos_vlarb_low 0:4,1:4,2:0,3:0,5:0,6:0,7:0
>     qos_vlarb_high 0:4,1:0,2:0,3:0,4:0,5:0,6:0,7:0
>
>     If I leave this options by default, opensm get warning
>     "Warning: torus-2QoS recommends 0 VLarb weights
>     for VLs 2-7 on endpoint links; not true ..."
>     Sorry for more questions. I can't found answer in internet.
>
>     1) Why I can't leave this tables ( vlarb_high, vlarb_low) by
>     default ? Who in routing engine torus2q and how  use this table ?
>     2) Why used only vl0 and vl1. In manual about Torus2q use 0-3 and
>     4-7 VLs ?
>     3) I can't understand why used weight 4 but not for example 64 or
>     255 ?
>     4) Why I should write this table for extended ca, swe, etc.
>     separately
>     May be somebody have links about this theme ?
>     Thanks for you interest and time
>
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