[Bacula-users] Disk based backup using vchanger, volumes being marked as Error

2014-08-01 Thread Joseph Dickson
Greetings :-)

I've run into this problem with Bacula in a previous installation, and I
can't seem to recall if there was ever a resolution..  I'm using Bacula for
disk based backups only, and I am using vchanger to manage my virtual
library.

I've configured a vchanger library with 100 slots and 8 drives, and have
set a Maximum Volume Bytes of 100G on the pool definition that I am using,
to limit each slot in the library to 100G.  I have also set a Maximum
Concurrent Jobs = 2 setting on each of the virtual tape drive devices in my
storage director config, so that only two jobs can write to a device at a
time to minimize interleaving.

Everything works perfectly as long as I only kick a few jobs off at a
time.. however, when my main backup windows run and 30 or 40 backup jobs
kick off, I often end up with jobs that output the following sequence in
the logs:

31-Jul 21:00 bacula1-dir JobId 692: Start Backup JobId 692,
Job=job-evolvereports-main.2014-07-31_21.00.00_48
31-Jul 21:00 bacula1-dir JobId 692: Using Device chg1-drive-1 to write.
31-Jul 21:00 evolvereports-fd JobId 692: DIR and FD clocks differ by 50
seconds, FD automatically compensating.
31-Jul 21:05 bacula1-sd JobId 692: 3307 Issuing autochanger unload slot
74, drive 1 command.
31-Jul 21:06 bacula1-sd JobId 692: Warning: Volume chg1_0001_0066 wanted
on chg1-drive-1 (/var/lib/bacula/chg1/1/drive1) is in use by device
chg1-drive-3 (/var/lib/bacula/chg1/3/drive3)
31-Jul 21:06 bacula1-sd JobId 692: Warning: Volume chg1_0001_0066 not on
file device chg1-drive-1 (/var/lib/bacula/chg1/1/drive1).
31-Jul 21:06 bacula1-sd JobId 692: Marking Volume chg1_0001_0066 in Error in
Catalog.
31-Jul 21:06 bacula1-sd JobId 692: Warning: Volume chg1_0001_0066 not on
file device chg1-drive-1 (/var/lib/bacula/chg1/1/drive1).
31-Jul 21:06 bacula1-sd JobId 692: Marking Volume chg1_0001_0066 in Error in
Catalog.
31-Jul 21:06 bacula1-sd JobId 692: Warning: mount.c:212 Open of file device
chg1-drive-1 (/var/lib/bacula/chg1/1/drive1) Volumechg1_0001_0066
failed: ERR=file_dev.c:172 Could not
open(/var/lib/bacula/chg1/1/drive1,OPEN_READ_WRITE,0640):
ERR=No such file or directory

31-Jul 21:06 bacula1-sd JobId 692: 3307 Issuing autochanger unload slot
71, drive 2 command.
31-Jul 21:06 bacula1-sd JobId 692: 3304 Issuing autochanger load slot 71,
drive 1 command.
31-Jul 21:06 bacula1-sd JobId 692: 3305 Autochanger load slot 71, drive
1, status is OK.
31-Jul 21:06 bacula1-sd JobId 692: Volume chg1_0001_0071 previously
written, moving to end of data.
31-Jul 21:06 bacula1-sd JobId 692: Ready to append to end of Volume
chg1_0001_0071
size=8,003,988,010

This ends up marking my perfectly usable volume as Error in the catalog.
 Is this something that everyone runs into?  Is there any fix?  As I recall
when I looked into it a few years back, the issue was the order and timing
of volume and device selection, but it's definitely been a while.

My bacula-sd.conf file is here:
http://pastebin.com/2eDFPDmE

Any guidance would be appreciated!

Thanks,

Joe
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[Bacula-users] Bacula restore to Windows 2008 R2

2011-03-09 Thread Joseph Dickson
Greetings..

I had occasion today to do a restore to a Windows 2008 R2 server with Bacula.. 
everything went fine, except for some minor confusion because the restored 
c:/restore/c folder was created with the hidden and system attributes.. 
Obviously I normally have my explorer shell set so I can see hidden and system 
files, but on this particular box I didn't and it ended up stumping me for a 
few minutes..

So I guess my question is whether there is a good reason that the c folder ends 
up restored with hidden system attributes, and whether there is anything I can 
do about that?  If not I'll just document it as part of our restore procedures, 
but I wanted to make sure there isn't a setting somewhere that I'm missing that 
would make peoples lives easier..

Thanks!

Joe

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[Bacula-users] is anyone successfully using MaxConcurrentJobs=1 on a Disk device?

2010-08-12 Thread Joseph Dickson
Greetings..

Is anyone out there successfully backing up many concurrent jobs using Disk 
autochangers, with MaxConcurrentJobs set to 1 for each drive device?

I've been encountering a lot of concurrency bugs in the SD code that I think is 
preventing me from doing this successfully, and I just wanted to make sure that 
nobody had a similar setup working in the wild..

My basic setup:
  20TB worth of disk, divided up into 250GB volumes using a disk autochanger 
script
  10 drives configured in the disk autochanger
  20-30 jobs starting simultaneously each night via schedule
  MaxConcurrentJobs=1 in each drive device, so only 1 job per virtual drive.

If anyone has something similar I'd love to talk with you about it.  I'm having 
lots of concurrency bug issues in SD that I think are biting me :-/

Thanks!

Joe

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[Bacula-users] disk volumes being marked in 'Error' -- concurency issue?

2010-08-11 Thread Joseph Dickson
Greetings..

I'm about ready to pull my hair out on this one :-/

My bacula is consistently marking volumes in Error and I'm not sure why.. I had 
looked at this a few months ago and it seemed like an issue where some of the 
special case code in volume selection was being skipped on File type devices..  
anyway, more about my setup:

I am using a fully disk-based setup, utilizing a custom disk-changer script.  I 
am also setting Maximum Concurrent Jobs = 1 on each of my drive devices, so 
that data is not interleaved.  I have 10 drives set up, so 10 jobs should run 
at the same time (on different volumes)..  All volumes are part of the same 
pool, and all backup levels go to that pool.

The backup process works fine for the first scheduled backup, picking 10 
volumes and labeling them appropriately.  I can schedule 20+ backup jobs, and 
they will all complete normally as expected and happily pick volumes that a 
previous job had just freed up.

The next night, however, when the Incremental runs, I consistently get job 
output like this:


11-Aug 01:30 zztop-dir JobId 9: Start Backup JobId 9, 
Job=boston.ajboggs.net_backup-onsite_fullset.2010-08-11_01.30.00_08

11-Aug 01:30 zztop-dir JobId 9: Using Device chg0_drive0

11-Aug 01:30 zztop-sd JobId 9: 3307 Issuing autochanger unload slot 1, drive 
0 command.

11-Aug 01:33 zztop-sd JobId 9: Warning: Volume bvol_ELAN-OnSite0_003 wanted 
on chg0_drive0 (/bacula-storage/chg0/drives/drive0) is in use by device 
chg0_drive2 (/bacula-storage/chg0/drives/drive2)

11-Aug 01:33 zztop-sd JobId 9: 3301 Issuing autochanger loaded? drive 0 
command.

11-Aug 01:33 zztop-sd JobId 9: 3302 Autochanger loaded? drive 0, result: 
nothing loaded.

11-Aug 01:33 zztop-sd JobId 9: Warning: Volume bvol_ELAN-OnSite0_003 not on 
device chg0_drive0 (/bacula-storage/chg0/drives/drive0).

11-Aug 01:33 zztop-sd JobId 9: Marking Volume bvol_ELAN-OnSite0_003 in Error 
in Catalog.

11-Aug 01:33 zztop-sd JobId 9: 3301 Issuing autochanger loaded? drive 0 
command.

11-Aug 01:33 zztop-sd JobId 9: 3302 Autochanger loaded? drive 0, result: 
nothing loaded.

11-Aug 01:33 zztop-sd JobId 9: Warning: Volume bvol_ELAN-OnSite0_003 not on 
device chg0_drive0 (/bacula-storage/chg0/drives/drive0).

11-Aug 01:33 zztop-sd JobId 9: Marking Volume bvol_ELAN-OnSite0_003 in Error 
in Catalog.

11-Aug 01:33 zztop-sd JobId 9: Warning: mount.c:217 Open device chg0_drive0 
(/bacula-storage/chg0/drives/drive0) Volume bvol_ELAN-OnSite0_003 failed: 
ERR=dev.c:549 Could not open: /bacula-storage/chg0/drives/drive0, ERR=No such 
file or directory



My autochanger and device entries look like:



Autochanger {

   Name = chg0

   Device = chg0_drive0

   Device = chg0_drive1

   Device = chg0_drive2

   Device = chg0_drive3

   Device = chg0_drive4

   Device = chg0_drive5

   Device = chg0_drive6

   Device = chg0_drive7

   Device = chg0_drive8

   Device = chg0_drive9

   Changer Device = /bacula-storage/chg0/chg0.conf

   Changer Command = /bacula-storage/lvm-changer %c %o %S %a %d %v

}



Device {

   Name = chg0_drive0

   Autochanger = yes

   ArchiveDevice = /bacula-storage/chg0/drives/drive0

   DeviceType = File

   MediaType = chg0_media

   AutomaticMount = yes

   AlwaysOpen = yes

   DriveIndex = 0

   RemovableMedia = no

   RandomAccess = yes

   Maximum Concurrent Jobs = 1

}



The lvm-changer script that I am using is a script that I wrote, which responds 
appropriately to all changer commands as far as I can tell.. and from the job 
output, it doesn't look like it's telling the changer script to do anything - 
it realizes the tape is in a different drive, and does NOT request that it be 
unloaded and reloaded into a different drive.



Do others have similar setups, or does everyone simply interleave data and only 
use one disk volume at a time?



Thanks for your help..



Joe


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Re: [Bacula-users] disk volumes being marked in 'Error' -- concurency issue?

2010-08-11 Thread Joseph Dickson
  11-Aug 01:33 zztop-sd JobId 9: Warning: mount.c:217 Open device
  chg0_drive0 (/bacula-storage/chg0/drives/drive0) Volume
  bvol_ELAN-OnSite0_003 failed: ERR=dev.c:549 Could not open:
  /bacula-storage/chg0/drives/drive0, ERR=No such file or directory
 
 This appears that bacula can not access your changer or drive.

John,

I believe this is expected, given the log entries above it.. bacula never told 
the autoloader to load drive 0 after unloading it.  I'll step through the log 
entries below in order and say what I think they are telling me:

11-Aug 01:30 zztop-dir JobId 9: Using Device chg0_drive0
11-Aug 01:30 zztop-sd JobId 9: 3307 Issuing autochanger unload slot 1, drive 
0 command.

  * Okay, we want to use drive0.  It has a tape in it - unload it.

11-Aug 01:33 zztop-sd JobId 9: Warning: Volume bvol_ELAN-OnSite0_003 wanted 
on chg0_drive0 (/bacula-storage/chg0/drives/drive0) is in use by device 
chg0_drive2 (/bacula-storage/chg0/drives/drive2)
   
  * Hmm this is strange, the volume that we decided to use is already mounted 
in another drive.  (likely considered a warning because logically the selection 
code should have picked this drive, yes?)

11-Aug 01:33 zztop-sd JobId 9: 3301 Issuing autochanger loaded? drive 0 
command.
11-Aug 01:33 zztop-sd JobId 9: 3302 Autochanger loaded? drive 0, result: 
nothing loaded.

   * Is the drive we want to use, drive 0, loaded?  Nope.  (but then, I haven't 
asked the autoloader to load it!)

11-Aug 01:33 zztop-sd JobId 9: Warning: Volume bvol_ELAN-OnSite0_003 not on 
device chg0_drive0 (/bacula-storage/chg0/drives/drive0).
11-Aug 01:33 zztop-sd JobId 9: Marking Volume bvol_ELAN-OnSite0_003 in Error 
in Catalog.

   * Hmm this is strange, I expected the volume to be available in drive 0 
(even though I never asked for it to be loaded there) and it is not.  Something 
msut be wrong with the volume, marking it as Error.

11-Aug 01:33 zztop-sd JobId 9: Warning: mount.c:217 Open device chg0_drive0 
(/bacula-storage/chg0/drives/drive0) Volume bvol_ELAN-OnSite0_003 failed: 
ERR=dev.c:549 Could not open: /bacula-storage/chg0/drives/drive0, ERR=No such 
file or directory

   * I'm trying to open the drive anyway, just in case the autoloader is lying 
to me?  (just guessing there).. Can't open it, because nothing is loaded in it  
(/bacula-storage/chg0/drives/drive0 would be a symlink to the actual volume 
file, if the autoloader had been told to load drive 0)

When I tried to solve this before, I dug into the code and to my shallow 
understanding of it, it looked like the volume  device selection code had some 
special cases to pick drives that already had the wanted volume loaded, but 
that they were perhaps disabled for Disk devices... 

I need to get this resolved if possible so I'll start to dig in again.. I 
turned up the debugging and tracing on the SD and dir, and will post those as 
soon as I have them..

In doing another test, it seems to be much harder to replicate this if I start 
all 20 jobs by hand rather than have them auto-start based on schedule.. not 
sure if that's a concurrency thing or what

Any ideas? :-/

Thanks,

Joe


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[Bacula-users] bacula disk based compression strategy

2010-08-08 Thread Joseph Dickson
Greetings..

I'm using Bacula in an all-disk based environment, using a disk based 
autochanger script.  I'm wondering if anyone has come up with a magic recipe 
for dealing with the compression issues that are inherent with this type of 
strategy..

What I'm talking about mostly is that bacula-fd performance with software 
compression on is pretty slow, which I think I've read can be attributed to the 
single threaded compression algorithm that is being used.. I would much rather 
stream the data from the hosts uncompressed and then compress it once it 
reaches the SD, since my backup server tends to be fairly beefy compared to 
many of my hosts..

What have other people done to combat this issue?  Is it worth my time 
investigating some of the virtual tape library software out there for Linux, 
which presumably implements reasonable compression on the virtual tape lib 
side?  Or are people perhaps using a transparent compression filesystem with 
good results?

Just trying to get a feel for what people have found works.. need to reduce the 
window to backup each host (i.e. up the throughput from the 2-3MB/sec I'm 
getting) but don't want to sacrifice the space of doing completely without 
compression :)

Thanks!

Joe

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Re: [Bacula-users] potential concurrency bug in SD?

2010-03-04 Thread Joseph Dickson
 There are several disk-changer bacula-sd configs in the
 regress/scripts/
 directory.  Are there any differences in your device config compared to
 those?

I'm not sure where you mean -- I don't see any regress/scripts dir in either 
the source distribution or the installed files..

Joe


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[Bacula-users] potential concurrency bug in SD?

2010-03-02 Thread Joseph Dickson
Greetings..

I believe I may be hitting a concurrency bug in the storage director code, but 
I'm pretty new to Bacula and may just not understand what I'm looking at in the 
trace output.  The quick outline of my scenario is:

Bacula version 5.0
SD and DIR running on same box (CentOS 5.4, x86_64)
Completely file based backup, using a custom autochanger script (which does not 
appear to be the problem, but I mention it because it may be relevant)

In my setup:

-  I have a single autochanger defined (changer0)

-  I have 10 drives of DeviceType=File defined for changer0

-  Maximum Concurrent Jobs = 1 is set on each Device entry for each 
drive

-  Each drive shares the same media type, changer0_media

-  I have three pools - OnSiteFull, OnSiteIncremental, and OnSiteScratch



I have 5 backup jobs that all start at the same time (1:30am), and which all 
will want either OnSiteFull or OnSiteIncremental depending on the day.



The problem that I am seeing is that volumes are being incorrectly marked as 
being in Error status each night.  My storage director trace output can be 
found at:  http://pastebin.com/raw.php?i=Ne0XJbBh



One of the jobs in the trace output that marks a volume as in Error is job 36.  
If someone more familiar with how volume selection works could take a peek and 
give me some guidance I'd really appreciate it.. in looking through the trace 
and trying to follow the code, it looks like there is a concurrency issue when 
there is a volume which is wanted on a drive other than the one it is currently 
loaded into.


Thanks,



Joe
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[Bacula-users] bacula asking autochanger for a volume it knows is already in use

2010-03-01 Thread Joseph Dickson
Greetings..

Fairly new to Bacula, and am using a fully disk based backup approach.  I have 
a virtual autochanger set up (using a custom autochanger script) and have ten 
virtual drives set up.  Each drive has maximum concurrent jobs set to 1, so 
that Bacula will reach for a new volume rather than interleave data.  Things 
seem to be working fairly well, except that Bacula seems to be making strange 
decisions as to which volumes to use for which jobs, and I don't understand 
why.  It appears to be deciding to use a volume that it knows is in use on 
another drive.  See the log output below:

01-Mar 01:30 zztop.ajboggs.net-dir JobId 31: Start Backup JobId 31, 
Job=backup-fullset-rush.ajboggs.net.2010-03-01_01.30.00_42
01-Mar 01:30 zztop.ajboggs.net-dir JobId 31: Using Device changer0_drive0
01-Mar 01:30 zztop.ajboggs.net-sd JobId 31: 3307 Issuing autochanger unload 
slot 4, drive 0 command.
01-Mar 01:31 zztop.ajboggs.net-sd JobId 31: Warning: Volume bvol_OnSite01-009 
wanted on changer0_drive0 (/bacula/changer0/drives/drive0) is in use by 
device changer0_drive2 (/bacula/changer0/drives/drive2)
01-Mar 01:31 zztop.ajboggs.net-sd JobId 31: 3301 Issuing autochanger loaded? 
drive 0 command.
01-Mar 01:31 zztop.ajboggs.net-sd JobId 31: 3302 Autochanger loaded? drive 0, 
result: nothing loaded.
01-Mar 01:31 zztop.ajboggs.net-sd JobId 31: Warning: Volume bvol_OnSite01-009 
not on device changer0_drive0 (/bacula/changer0/drives/drive0).
01-Mar 01:31 zztop.ajboggs.net-sd JobId 31: Marking Volume bvol_OnSite01-009 
in Error in Catalog.
01-Mar 01:31 zztop.ajboggs.net-sd JobId 31: 3301 Issuing autochanger loaded? 
drive 0 command.
01-Mar 01:31 zztop.ajboggs.net-sd JobId 31: 3302 Autochanger loaded? drive 0, 
result: nothing loaded.
01-Mar 01:31 zztop.ajboggs.net-sd JobId 31: Warning: Volume bvol_OnSite01-009 
not on device changer0_drive0 (/bacula/changer0/drives/drive0).
01-Mar 01:31 zztop.ajboggs.net-sd JobId 31: Marking Volume bvol_OnSite01-009 
in Error in Catalog.
01-Mar 01:31 zztop.ajboggs.net-sd JobId 31: Warning: mount.c:227 Open device 
changer0_drive0 (/bacula/changer0/drives/drive0) Volume bvol_OnSite01-009 
failed: ERR=dev.c:549 Could not open: /bacula/changer0/drives/drive0, ERR=No 
such file or directory

01-Mar 01:31 zztop.ajboggs.net-sd JobId 31: 3301 Issuing autochanger loaded? 
drive 0 command.
01-Mar 01:31 zztop.ajboggs.net-sd JobId 31: 3302 Autochanger loaded? drive 0, 
result: nothing loaded.
01-Mar 01:31 zztop.ajboggs.net-sd JobId 31: 3304 Issuing autochanger load slot 
5, drive 0 command.
01-Mar 01:31 zztop.ajboggs.net-sd JobId 31: 3305 Autochanger load slot 5, 
drive 0, status is OK.
01-Mar 01:31 zztop.ajboggs.net-sd JobId 31: Volume bvol_OnSite01-005 
previously written, moving to end of data.
01-Mar 01:31 zztop.ajboggs.net-sd JobId 31: Ready to append to end of Volume 
bvol_OnSite01-005 size=133733782

A couple things about the log output doesn't make any sense to me - first, why 
is Bacula deciding to use a volume which is in use in another drive, and 
second, why is it complaining that the volume is not mounted on the drive that 
it's chosen for this job when it never asked the autochanger to unload it from 
the drive it was in, and then load it into the drive it wanted?

Any pointers would be appreciated..

Thanks,

Joe

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Re: [Bacula-users] Use Import/Export slots of autochanger

2010-02-26 Thread Joseph Dickson
 my question may be a vendor specific one or may be a mtx-changer
 question. My Quantum autochanger has 5 Import/Export slots, which
 basically are just better accessible tape slots. Mtx displays the slots
 as I/E slots. But tapes in those slots are not recognised by Bacula.
 See
 attached console output.
 
 Is there a way Bacula can use those I/E slots like any other slot?

A quick look at the mtx-changer script shows that these lines are probably 
causing you the trouble... they're inside the section for the list command:

 if test ${vxa_packetloader} -ne 0 ; then
cat ${TMPFILE} | grep  *Storage Element [0-9]*:.*Full | sed s/ 
Storage Element // | sed s/Full :VolumeTag=//
  else
cat ${TMPFILE} | grep  Storage Element [0-9]*:.*Full | awk {print 
\$3 \$4} | sed s/Full *\(:VolumeTag=\)*//
  fi

Notice that the regex in the first part won't match your IMPORT/EXPORT slots.  
My hunch is that you'll need to modify those greps, and probably the awk/sed 
immediately afterward... 

Another thing to check is whether or not mtx-changer is getting the correct 
number of total slots available when it's asked for it -- if not you'll have to 
fix that behavior too, probably..

Hope that helps!

Joe


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[Bacula-users] disk based backup, interleaving pros/cons?

2010-02-26 Thread Joseph Dickson
Greetings..

I'm using completely disk based backup, with a custom autochanger script.  When 
I initially set this up, I set the maximum job concurrency on each of my disk 
devices to 1, so that Bacula would be forced to only write one job to any given 
volume at any given time.

I'm just wondering, now that I've done that, is there any REAL advantage for me 
in not allowing Bacula to interleave on a disk based volume?  Does it make the 
on-volume format a lot simpler?

Joe

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Re: [Bacula-users] software compression, real size vs size written?

2010-02-25 Thread Joseph Dickson
 2)  Is there an easy way in bconsole to see what the actual size on disk
 of the job was?  All of the size numbers reported seem to be
 post-compression, which makes sense since the compression happens on the
 host, but I'm assuming bacula is storing ACTUAL size on disk info in the
 catalog somewhere.. I'd love to quickly see how much REAL data I'm backing
 up, compared to how much virtual tape space it's taking..

 2) from bconsole, use the command 'estimate'

Thanks for the answer!

The estimate command will connect to the client and ask for an estimate as of 
now, yes? -- is there no easy way to just get this information from the catalog 
for a job that has already completed?

Thanks,

Joe


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[Bacula-users] software compression, real size vs size written?

2010-02-24 Thread Joseph Dickson
Greetings!

I'm relatively new to Bacula, and am working on my first deployment.  I am 
working in a completely disk-based environment, so I have a single director and 
SD which run on the same host, and a few Windows test server clients which run 
FD's.

Because it's all disk based, I'm using compression=gzip4 in my fileset 
directives.  I have two questions regarding compression:


1)What is the percentage that is reported in the job statistics?  Is 
that how well the compression is doing, or how much CPU it took to do it?  I've 
seen references to both..

2)  Is there an easy way in bconsole to see what the actual size on disk of 
the job was?  All of the size numbers reported seem to be post-compression, 
which makes sense since the compression happens on the host, but I'm assuming 
bacula is storing ACTUAL size on disk info in the catalog somewhere.. I'd love 
to quickly see how much REAL data I'm backing up, compared to how much virtual 
tape space it's taking..

Thanks!

Joseph Dickson
AJ Boggs
joseph.dick...@ajboggs.com

--
Download Intel#174; Parallel Studio Eval
Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
See why Intel Parallel Studio got high marks during beta.
http://p.sf.net/sfu/intel-sw-dev___
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