[Pvfs2-developers] BMI questions

[Scott Atchley]

Hi all,

No one replied the the original post. The one I am most curious about  
is (3). Is FlowBufferSizeBytes available to the BMI implementations?

I am thinking about how to handle BMI_mx_memalloc(). I might be able  
to assist the reg cache in MX if I do things a certain way.

Scott

On Oct 25, 2006, at 1:53 PM, Scott Atchley wrote:

> Hi all,
>
> A few quick questions:
>
> 1. Is there an upper bound on how many transfer operations between  
> a pair of hosts at any one time (i.e. between a client and host)?
>
> 2. If there is a limit in the above and it is greater than 1, is  
> that value the same for small (unexpected and some expected)  
> messages and large (expected) messages? Or are large messages  
> restricted to a lower value?
>
> 3. In the thread entitled "libpvfs2 usage", SamL mentioned the  
> tunable called FlowBufferSizeBytes and that it is set to 256KB by  
> default. Is this value the upper limit on large messages (i.e. 8KB  
> < large messages <= FlowBufferSizeBytes assuming 8 KB is the  
> maximum unexpected size)? Would the BMI method have any knowledge  
> of what this value is (i.e. can it use FlowBufferSizeBytes to  
> allocate large buffers)?
>
> Thanks,
>
> Scott
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