[ofw] RE: installation/connectivity problems on hpc server

[Hal Rosenstock]

On Mon, Nov 16, 2009 at 3:32 PM, Anatoly Greenblatt
<anatolyg at voltaire.com> wrote:
> I think this bug can be noticed only when opensm runs on ppc while host
> run on intel platforms or vise-versa.

>From opensm_release_notes:
OpenSM Compatibility
--------------------
Note that OpenSM version 3.2.1 and earlier used a value of 1 in host
byte order for the default SM_Key, so there is a compatibility issue
with these earlier versions of OpenSM when the 3.2.2 or later version
is running on a little endian machine. This affects SM handover as well
as SA queries (saquery tool in infiniband-diags).

> Also, I'd appreciate if anyone can point me to the place where this
> sa_key filled in sa query (or how it is mapped).

The --smkey option in saquery allows this to be specified.

-- Hal

> Thanks,
> Anatoly.
>
> -----Original Message-----
> From: Hal Rosenstock [mailto:hal.rosenstock at gmail.com]
> Sent: Monday, November 16, 2009 8:53 PM
> To: Sean Hefty
> Cc: Anatoly Greenblatt; Fab Tillier; Tzachi Dar; Smith, Stan;
> ofw at lists.openfabrics.org
> Subject: Re: [ofw] RE: installation/connectivity problems on hpc server
>
> On Mon, Nov 16, 2009 at 11:46 AM, Sean Hefty <sean.hefty at intel.com>
> wrote:
>>>Stan/Sean, when you perform linux/windows dapl tests do you use
> windows
>>>or linux opensm and what is the value of sa_key?
>>
>> I always use a linux version of opensm, since I share switches with a
> linux
>> cluster.  I don't know what value the sa_key is, but it's 99% likely
> to be
>> whatever the default is.
>>
>> Do you know what exactly the sa_key maps to?
>
> The default sa_key depends on which version of OpenSM is being used.
>
> # Note that for both values above (sm_key and sa_key)
> # OpenSM version 3.2.1 and below used the default value '1'
> # in a host byte order, it is fixed now but you may need to
> # change the values to interoperate with old OpenSM running
> # on a little endian machine.
>
>> Is this how the user specifies the
>> SM key, or is it something else?
>
> There are two separate keys: sm_key and sa_key.
>
> -- Hal
>
>> - Sean
>>
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>