[ofa-general] Re: [OMPI users] openMPI over uDAPL doesn't work

[Arlin Davis]

Steve Wise wrote:

>>>Can the UDAPL OFED wizards shed any light on the error messages that  
>>>are listed below?  In particular, these seem to be worrysome:
>>>
>>>      
>>>
>>>> setup_listener Permission denied
>>>>        
>>>>
>>> setup_listener Address already in use
>>>      
>>>
>>These failures are from rdma_cm_bind indicating the port is already 
>>bound to this IA address. How are you creating the service point?
>>dat_psp_create or dat_psp_create_any? If it is psp_create_any then you 
>>will see some failures until it  gets to a free port. That is normal. 
>>Just make sure your create call returns DAT_SUCCESS.
>>
>>    
>>
>
>Arlin, why doesn't dapl_psp_create_any() just pass a port of zero down
>and let the rdma-cma pick an available port number?
>
>  
>
That would work fine if the provider interface allowed the port to be 
returned. I  will take a look and see if we can improve on this common 
code seeding method.