[Pvfs2-developers] Suggested testing for bmi_mx?

Scott Atchley atchley at myri.com
Mon Jan 29 14:32:34 EST 2007


Hi Murali,

I just ran IOR using a server using ramfs (output below).

I searched the pvfs2 lists for existing IOR scripts and the only  
thing I found was the mpi-io scripts. I will test those next, but I  
was wondering if you had other IOR scripts in mind.

Scott

% ./src/C/IOR -W -f scripts/test
IOR-2.9.2: MPI Coordinated Test of Parallel I/O

Run began: Mon Jan 29 14:17:37 2007
Command line used: ./src/C/IOR -W -f scripts/test
Machine: Linux fog34

Summary:
         api                = POSIX
         test filename      = /mnt/pvfs2/testFile
         access             = single-shared-file
         clients            = 1 (1 per node)
         repetitions        = 1000
         xfersize           = 1 MiB
         blocksize          = 10 MiB
         aggregate filesize = 10 MiB

access    bw(MiB/s)  block(KiB) xfer(KiB)  open(s)    wr/rd(s)   close 
(s)   iter
------    ---------  ---------- ---------  --------   --------    
--------   ----
write     155.54     10240      1024.00    0.009620   0.054637    
0.000024   0
read      446.31     10240      1024.00    0.000019   0.022362    
0.000015   0
write     186.69     10240      1024.00    0.000055   0.053483    
0.000015   1
read      433.26     10240      1024.00    0.000017   0.023039    
0.000015   1
<snip>
read      430.59     10240      1024.00    0.000018   0.023181    
0.000014   998
write     185.72     10240      1024.00    0.000057   0.053765    
0.000014   999
read      431.26     10240      1024.00    0.000015   0.023148    
0.000014   999

Max Write: 187.38 MiB/sec (196.49 MB/sec)
Max Read:  446.31 MiB/sec (467.99 MB/sec)


On Jan 25, 2007, at 3:17 PM, Murali Vilayannur wrote:

> Hi Scott,
> Excellent!! Very cool stuff!
> Can you also run connectathon, ior and/or ltp?
> There must be email archives on the -dev list for cmnd line options to
> run them..
> thanks!
> Murali
>
> On 1/25/07, Scott Atchley <atchley at myri.com> wrote:
>> Hi all,
>>
>> The code is complete as far as features go. I am using the gossip
>> library for all output. I can use the command line tools and the
>> kernel module works as well.
>>
>> I have tested the server by killing clients during long transfers and
>> the clients can reconnect correctly and continue with new operations.
>> I have killed the server while the client has mounted the kernel
>> module, and when I restart the server, the client can start new
>> operations.
>>
>> I have only briefly looked at the $PVFS2/test/io/bmi suite. I will
>> try to run these next.
>>
>> Are there any other suggested tests? Should I try to run the full
>> $PVFS2/test suite? What is recommended?
>>
>> I will test on older hardware first. After I am familiar with the
>> tests, I will then switch to some 10G machines.
>>
>> Thanks,
>>
>> Scott
>> _______________________________________________
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>> Pvfs2-developers at beowulf-underground.org
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>>



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