Also I'm removing Jimmy from this list since he may not be working with wind files at this point.
Sohail On Sat, Nov 3, 2012 at 1:15 PM, Sohail Shafii <sssha...@ucdavis.edu> wrote: > At this point the changes will have to wait, unfortunately. For the past > two weeks I've been involved with a TopoInVis submission so I couldn't get > around to it. I'll look at it this weekend. No need to wait for me. > > > On Thu, Nov 1, 2012 at 10:29 AM, Andy Bauer <andy.ba...@kitware.com>wrote: > >> We're getting ready for a pre-release of PV 4.0 now so we'll need this >> soon. If we need to update to a newer WindBlade file for the test, we can >> do that too. You'll have to think though on how to handle backwards >> compatibility. >> >> Andy >> >> >> On Wed, Oct 31, 2012 at 12:37 PM, Sohail Shafii <sssha...@ucdavis.edu>wrote: >> >>> Well you probably know already, but I won't be able to make the changes >>> right now. I have a submission due this Friday. The reader still works >>> for newer data sets but fails for the outdated one that you guys use for >>> testing. So the fixes will have to come later. >>> >>> >>> On Fri, Oct 26, 2012 at 2:39 PM, Andy Bauer <andy.ba...@kitware.com>wrote: >>> >>>> This change is only in VTK in gerrit so you need to follow the >>>> directions there to check out the code and run the test. The directions are >>>> at http://review.source.kitware.com/#/t/1396/ >>>> >>>> I'm not sure why paraview is crashing though. I'll check on that. >>>> >>>> andy >>>> >>>> >>>> On Fri, Oct 26, 2012 at 5:06 PM, Sohail Shafii <sssha...@ucdavis.edu>wrote: >>>> >>>>> Current master version can't launch (MacOS Mountain Lion): >>>>> >>>>> paraview(575,0x7fff72e33180) malloc: *** error for object 0x111058450: >>>>> pointer being freed was not allocated >>>>> *** set a breakpoint in malloc_error_break to debug >>>>> >>>>> Program received signal SIGABRT, Aborted. >>>>> 0x00007fff82432212 in __pthread_kill () >>>>> (gdb) bt 14 >>>>> #0 0x00007fff82432212 in __pthread_kill () >>>>> #1 0x00007fff87964af4 in pthread_kill () >>>>> #2 0x00007fff879a8dce in abort () >>>>> #3 0x00007fff8797c959 in free () >>>>> #4 0x00007fff5fc0762a in >>>>> __dyld__ZN4dyldL12registerDOFsERKNSt3__16vectorIN11ImageLoader7DOFInfoENS0_9allocatorIS3_EEEE >>>>> () >>>>> #5 0x00007fff5fc0f06b in >>>>> __dyld__ZN11ImageLoader4linkERKNS_11LinkContextEbbRKNS_10RPathChainE () >>>>> #6 0x00007fff5fc04ce4 in >>>>> __dyld__ZN4dyld4linkEP11ImageLoaderbRKNS0_10RPathChainE () >>>>> #7 0x00007fff5fc0a81a in __dyld_dlopen () >>>>> #8 0x00007fff8ac96dd8 in dlopen () >>>>> #9 0x00007fff83dcfa10 in gfxInitializeLibrary () >>>>> #10 0x000000011e6014fe in gliInitializeLibrary () >>>>> #11 0x00007fff8a4f63e6 in glcPluginCount () >>>>> #12 0x00007fff8a4f62a8 in glcPluginCount () >>>>> #13 0x00007fff8a4f6091 in glcPluginCount () >>>>> (More stack frames follow...) >>>>> >>>>> >>>>> Which version of the master works, so that I can debug? >>>>> >>>>> Sohail >>>>> >>>>> >>>>> On Wed, Oct 24, 2012 at 10:04 AM, Andy Bauer >>>>> <andy.ba...@kitware.com>wrote: >>>>> >>>>>> A beta version will be released by mid-November. In order for the >>>>>> desired changes to make it in to that, the VTK part that's waiting your >>>>>> changes needs to go in early next week so that I can make the changes to >>>>>> ParaView to enable the WindBlade reader when running in either built-in >>>>>> mode or connecting to a serial server. >>>>>> >>>>>> Andy >>>>>> >>>>>> On Wed, Oct 24, 2012 at 12:13 PM, Sohail Shafii < >>>>>> sohailsha...@yahoo.com> wrote: >>>>>> >>>>>>> >>>>>>> Haven't had a chance yet due to a paper. I'll look at it this week. >>>>>>> How soon will it be released? >>>>>>> >>>>>>> Also please respond to my sssha...@ucdavis.edu as this address is >>>>>>> not on the paraview list anymore. >>>>>>> >>>>>>> Sohail >>>>>>> >>>>>>> ------------------------------ >>>>>>> *From:* Andy Bauer <andy.ba...@kitware.com> >>>>>>> *To:* Sohail Shafii <sohailsha...@yahoo.com> >>>>>>> *Cc:* David E DeMarle <dave.dema...@kitware.com>; " >>>>>>> migic...@gmail.com" <migic...@gmail.com>; "paraview@paraview.org" < >>>>>>> paraview@paraview.org>; "Woodring, Jonathan L" <woodr...@lanl.gov> >>>>>>> *Sent:* Wednesday, October 24, 2012 8:09 AM >>>>>>> >>>>>>> *Subject:* Re: [Paraview] ParaView thinks that it does not have a >>>>>>> wind blade reader >>>>>>> >>>>>>> Hi Sohail, >>>>>>> >>>>>>> Did you get a chance to look at the warnings for the >>>>>>> vtkIOGeometryCxx-TestWindBladeReader test for the >>>>>>> http://review.source.kitware.com/#/t/1396/ gerrit topic? It's going >>>>>>> to need to be fixed pretty soon if it's going to make it into the >>>>>>> ParaView >>>>>>> 4.0 release. >>>>>>> >>>>>>> Thanks, >>>>>>> Andy >>>>>>> >>>>>>> On Wed, Oct 3, 2012 at 10:22 PM, Andy Bauer >>>>>>> <andy.ba...@kitware.com>wrote: >>>>>>> >>>>>>> It's available with "git clone >>>>>>> git://vtk.org/VTKLargeData.gitVTKLargeData". >>>>>>> It's in the Data/WindBladeReader subdirectory there. >>>>>>> >>>>>>> On Wed, Oct 3, 2012 at 6:27 PM, Sohail Shafii < >>>>>>> sohailsha...@yahoo.com> wrote: >>>>>>> >>>>>>> Which data set are you using for the test? >>>>>>> >>>>>>> If it's the single turbine data set with the curvy terrain, I don't >>>>>>> have it (I use other data sets) so I can't do a similar test. Let me >>>>>>> know >>>>>>> where I can download it. >>>>>>> >>>>>>> Sohail >>>>>>> >>>>>>> ------------------------------ >>>>>>> *From:* Andy Bauer <andy.ba...@kitware.com> >>>>>>> *To:* David E DeMarle <dave.dema...@kitware.com> >>>>>>> *Cc:* Sohail Shafii <sohailsha...@yahoo.com>; "migic...@gmail.com" < >>>>>>> migic...@gmail.com>; "paraview@paraview.org" <paraview@paraview.org>; >>>>>>> "Woodring, Jonathan L" <woodr...@lanl.gov> >>>>>>> *Sent:* Wednesday, October 3, 2012 3:16 PM >>>>>>> >>>>>>> *Subject:* Re: [Paraview] ParaView thinks that it does not have a >>>>>>> wind blade reader >>>>>>> >>>>>>> I finally got around to doing the VTK part of the WindBladeReader >>>>>>> work. It's on gerrit at http://review.source.kitware.com/#/c/7734/. >>>>>>> It still needs some cleanup but at least both the serial test and the >>>>>>> parallel test with a single process pass. For the serial test, >>>>>>> vtkIOGeometryCxx-TestWindBladeReader, I'm still getting the following >>>>>>> warning which needs to be fixed as well: >>>>>>> Warning: In >>>>>>> /home/acbauer/CODE/VTK/VTK/IO/Geometry/vtkWindBladeReader.cxx, line 568 >>>>>>> vtkWindBladeReader (0x1373840): WindBladeReader error reading file: >>>>>>> /home/acbauer/DATA/VTKLargeData/Data/WindBladeReader/test1_topo.wind >>>>>>> Premature EOF while reading block of data. Expected 896000 but got 0 >>>>>>> >>>>>>> Sohail, can you check this out and fix it? >>>>>>> >>>>>>> Thanks, >>>>>>> Andy >>>>>>> >>>>>>> On Fri, Jul 20, 2012 at 12:02 PM, David E DeMarle < >>>>>>> dave.dema...@kitware.com> wrote: >>>>>>> >>>>>>> Thanks. >>>>>>> >>>>>>> In today's git master it now sits in >>>>>>> VTK/IO/Parallel/vtkWindbladeReader. >>>>>>> >>>>>>> The serial version should go in VTK/IO/Geometry. >>>>>>> >>>>>>> The MPI version should go in a new module VTK/IO/MPIParallel. >>>>>>> (VTK/IO/Parallel depends only on vtkSocketController now and should >>>>>>> not depend on vtkMPIController). >>>>>>> >>>>>>> Finally when that is done we can remove the flag in paraview's xml >>>>>>> that prevents it from being used in serial. >>>>>>> >>>>>>> David E DeMarle >>>>>>> Kitware, Inc. >>>>>>> R&D Engineer >>>>>>> 21 Corporate Drive >>>>>>> Clifton Park, NY 12065-8662 >>>>>>> Phone: 518-881-4909 >>>>>>> >>>>>>> >>>>>>> On Thu, Jul 19, 2012 at 7:08 PM, Sohail Shafii < >>>>>>> sohailsha...@yahoo.com> wrote: >>>>>>> > Well it seems like #1 and #2 can be solved by writing a new >>>>>>> parallel wind >>>>>>> > blade reader class. I had similar experience by creating >>>>>>> distributed >>>>>>> > versions of class that I created in other vtk directories. The >>>>>>> normal wind >>>>>>> > blade reader would have no parallel calls, which would address #1. >>>>>>> > >>>>>>> > What I find interesting is that in your directories, the wind >>>>>>> blade reader >>>>>>> > is located in VTK/IO/Parallel. For the ParaView snapshot that I >>>>>>> downloaded, >>>>>>> > as well as the 3.14 source, it's still in VTK/Parallel. No >>>>>>> Parallel folder >>>>>>> > in VTK/IO. Is this a recent change? >>>>>>> > >>>>>>> > So maybe the ideal folder layout would be: >>>>>>> > >>>>>>> > VTK/IO/WindBladeReader.* >>>>>>> > >>>>>>> > VTK/IO/Parallel/DistributedWindBladeReader.* >>>>>>> > >>>>>>> > I can make changes to the WindBladeReader to remove the MPI-IO >>>>>>> calls and >>>>>>> > make a distributed wind blade reader class in case you want to add >>>>>>> them to >>>>>>> > the repository. The one template I have for the parallel/serial >>>>>>> split is the >>>>>>> > vtkStreamTracer and its distributed counterparts so I can use >>>>>>> those as a >>>>>>> > guide. If you have better recommendations please let me know. >>>>>>> > >>>>>>> > Sohail >>>>>>> > >>>>>>> > ________________________________ >>>>>>> > From: David E DeMarle <dave.dema...@kitware.com> >>>>>>> > To: Sohail Shafii <sohailsha...@yahoo.com> >>>>>>> > Cc: Andy Bauer <andy.ba...@kitware.com>; "migic...@gmail.com" >>>>>>> > <migic...@gmail.com>; "paraview@paraview.org" < >>>>>>> paraview@paraview.org>; >>>>>>> > "Woodring, Jonathan L" <woodr...@lanl.gov> >>>>>>> > Sent: Thursday, July 19, 2012 3:20 PM >>>>>>> > >>>>>>> > Subject: Re: [Paraview] ParaView thinks that it does not have a >>>>>>> wind blade >>>>>>> > reader >>>>>>> > >>>>>>> > Two issues need to be fixed. >>>>>>> > 1) that behavior in 3.14 is there because of this fix which we had >>>>>>> to >>>>>>> > rush in just before the 3.14 release. >>>>>>> > >>>>>>> > Committer: Utkarsh Ayachit <utkarsh.ayac...@kitware.com> >>>>>>> 2012-02-08 >>>>>>> > 17:12:18 >>>>>>> > Parent: e401d569f6e54c49c3497852463f6b13a01da8b6 (Update version >>>>>>> after >>>>>>> > 3.14.0-RC1 tag.) >>>>>>> > Child: 99fdb1aeb5997c29b43393f45a478c4b53a23109 (Merge topic >>>>>>> > 'fix_windblade_segfault') >>>>>>> > Branches: many (31) >>>>>>> > Follows: v3.14.0-RC1 >>>>>>> > Precedes: v3.14.0-RC2 >>>>>>> > >>>>>>> > Fix segfault with ParaView built with MPI when opening *.vtr >>>>>>> files. >>>>>>> > >>>>>>> > The problem was that vtkWindBlade reader was getting created >>>>>>> to test >>>>>>> > "CanReadFile" and that would cause segfault unless MPI was >>>>>>> initialized. >>>>>>> > >>>>>>> > Solved the problem by added support to vtkSMReaderFactory to >>>>>>> respect the >>>>>>> > ProcessSupport flag on SourceProxy and change windblade reader >>>>>>> XML >>>>>>> > to say that >>>>>>> > it only works in parallel. >>>>>>> > >>>>>>> > In other words, Windblade reader's Constructor should not take it >>>>>>> upon >>>>>>> > itself to initialize MPI. >>>>>>> > >>>>>>> > Once that is fixed, we get to issue 2 before paraview 4.0 >>>>>>> > >>>>>>> > 2) VTK's new modularization has the rule that no module can behave >>>>>>> > differently with parallel (or most other cmake config options) >>>>>>> turned >>>>>>> > configured on or off. This is so because it makes it very hard to >>>>>>> > package VTK when the libs behave differently in different >>>>>>> situations. >>>>>>> > >>>>>>> > Ie, we can't have any more >>>>>>> > #ifdef VTK_USE_MPI >>>>>>> > do something >>>>>>> > #else >>>>>>> > do something different >>>>>>> > #endif >>>>>>> > in VTK classes. >>>>>>> > >>>>>>> > Now if we want a class to behave differently when MPI is turned on >>>>>>> or >>>>>>> > off we have to make a serial only version in a non MPI dependent >>>>>>> > module and a subclass of that in an MPI dependent module. >>>>>>> > >>>>>>> > David E DeMarle >>>>>>> > Kitware, Inc. >>>>>>> > R&D Engineer >>>>>>> > 21 Corporate Drive >>>>>>> > Clifton Park, NY 12065-8662 >>>>>>> > Phone: 518-881-4909 >>>>>>> > >>>>>>> > >>>>>>> > On Thu, Jul 19, 2012 at 3:52 PM, Sohail Shafii < >>>>>>> sohailsha...@yahoo.com> >>>>>>> > wrote: >>>>>>> >> When running serially, vtkSMReaderFactory::CanReadFile sees that >>>>>>> the >>>>>>> >> session >>>>>>> >> has a single process. As such, on line 660 it realizes that the >>>>>>> source >>>>>>> >> proxy's process support (in this case the source is a >>>>>>> vtkWindBladeReader >>>>>>> >> proxy) is multiple processes, which causes a return of "false" >>>>>>> from that >>>>>>> >> function. This makes ParaView think that the wind blade reader >>>>>>> can't read >>>>>>> >> a >>>>>>> >> .wind file in serial. According to Andy, the reader works find in >>>>>>> >> parallel. >>>>>>> >> >>>>>>> >> I assume that a fix for this is pretty trivial? It never did this >>>>>>> before >>>>>>> >> in >>>>>>> >> previous versions of ParaView and I think that the wind blade >>>>>>> reader code >>>>>>> >> has remained mostly the same. Andy mentioned some details in >>>>>>> person when >>>>>>> >> he >>>>>>> >> was talking with Jon but at that time I didn't know as much as I >>>>>>> do now. >>>>>>> >> There is a mention below about enabling the filter in serial and >>>>>>> parallel >>>>>>> >> -- >>>>>>> >> is this done in a xml file? >>>>>>> >> >>>>>>> >> Sohail >>>>>>> >> >>>>>>> >> ________________________________ >>>>>>> >> From: David E DeMarle <dave.dema...@kitware.com> >>>>>>> >> To: Sohail Shafii <sohailsha...@yahoo.com> >>>>>>> >> Cc: Andy Bauer <andy.ba...@kitware.com>; "migic...@gmail.com" >>>>>>> >> <migic...@gmail.com>; "paraview@paraview.org" < >>>>>>> paraview@paraview.org>; >>>>>>> >> "Woodring, Jonathan L" <woodr...@lanl.gov> >>>>>>> >> Sent: Tuesday, July 17, 2012 7:00 PM >>>>>>> >> >>>>>>> >> Subject: Re: [Paraview] ParaView thinks that it does not have a >>>>>>> wind blade >>>>>>> >> reader >>>>>>> >> >>>>>>> >> Each file that has an association with that file extension, made >>>>>>> via the >>>>>>> >> XML, has its CanReadFile method called. Put a breakpoint there to >>>>>>> >> determine >>>>>>> >> if ParaView even knows about that reader. >>>>>>> >> >>>>>>> >> On Tuesday, July 17, 2012, Sohail Shafii wrote: >>>>>>> >> >>>>>>> >> Sorry, but I meant to ask a different question. Here's what Andy >>>>>>> said >>>>>>> >> before, which relates to my concern: >>>>>>> >> "> >>>>>>> >>> I went through the code and it jogged my memory about previous >>>>>>> problems >>>>>>> >>> with >>>>>>> >>> it. It had an explicit MPI call in the constructor that would >>>>>>> cause >>>>>>> >>> problems >>>>>>> >>> when paraview wasn't getting built with MPI. Any time a user >>>>>>> tried to >>>>>>> >>> open >>>>>>> >>> an unknown file it would try to create a windblade reader to see >>>>>>> if the >>>>>>> >>> reader could handle the file and this would cause a crash. If >>>>>>> you launch >>>>>>> >>> a >>>>>>> >>> separate pvserver the wind blade reader will be available in the >>>>>>> gui." >>>>>>> >> >>>>>>> >> What I meant was; which ParaView class "creates" or "tests" a >>>>>>> reader to >>>>>>> >> see >>>>>>> >> if it can handle a file? The test code you specified has a >>>>>>> predefined data >>>>>>> >> set that is loaded in, and I think is more of an example to your >>>>>>> average >>>>>>> >> user. Correct me if I'm wrong. >>>>>>> >> >>>>>>> >> So basically ParaView will recognize the file extension, tries to >>>>>>> load it, >>>>>>> >> crashes somewhere, then asks you specify the data format from a >>>>>>> dialog. >>>>>>> >> I'm >>>>>>> >> trying to figure out where it crashes so that I can see how that >>>>>>> relates >>>>>>> >> to >>>>>>> >> the wind blade reader class and any MPI calls that are in there. >>>>>>> >> >>>>>>> >> Sohail >>>>>>> >> >>>>>>> >> Subject: Re: [Paraview] ParaView thinks that it does not have a >>>>>>> wind blade >>>>>>> >> reader >>>>>>> >> >>>>>>> >> kargad:ParaView demarle$ find . -name "*WindBlade*" -print >>>>>>> >> ---> ./VTK/IO/Parallel/Testing/Cxx/TestWindBladeReader.cxx >>>>>>> >> ./VTK/IO/Parallel/vtkWindBladeReader.cxx >>>>>>> >> ./VTK/IO/Parallel/vtkWindBladeReader.h >>>>>>> >> >>>>>>> >> David E DeMarle >>>>>>> >> Kitware, Inc. >>>>>>> >> R&D Engineer >>>>>>> >> 21 Corporate Drive >>>>>>> >> Clifton Park, NY 12065-8662 >>>>>>> >> Phone: 518-881-4909 >>>>>>> >> >>>>>>> >> >>>>>>> >> On Tue, Jul 17, 2012 at 2:09 PM, Sohail Shafii < >>>>>>> sohailsha...@yahoo.com> >>>>>>> >> wrote: >>>>>>> >>> What is the class that is responsible for testing to reader to >>>>>>> see if it >>>>>>> >>> can >>>>>>> >>> open the .wind file? >>>>>>> >>> >>>>>>> >>> Sohail >>>>>>> >>> >>>>>>> >>> ________________________________ >>>>>>> >>> From: Andy Bauer <andy.ba...@kitware.com> >>>>>>> >>> To: Sohail Shafii <sohailsha...@yahoo.com> >>>>>>> >>> Cc: "Woodring, Jonathan L" <woodr...@lanl.gov>; Sebastien >>>>>>> Jourdain >>>>>>> >>> <sebastien.jourd...@kitware.com>; "migic...@gmail.com" >>>>>>> >>> <migic...@gmail.com>; >>>>>>> >>> "paraview@paraview.org" <paraview@paraview.org> >>>>>>> >>> Sent: Wednesday, July 11, 2012 10:53 AM >>>>>>> >>> >>>>>>> >>> Subject: Re: [Paraview] ParaView thinks that it does not have a >>>>>>> wind >>>>>>> >>> blade >>>>>>> >>> reader >>>>>>> >>> >>>>>>> >>> I was reluctant to enable the reader in serial (i.e. not using >>>>>>> MPI IO >>>>>>> >>> which >>>>>>> >>> I think is getting done by default with the parallel build) >>>>>>> because of >>>>>>> >>> the >>>>>>> >>> following warnings that I got: >>>>>>> >>> >>>>>>> >>> Warning: In /home/acbauer/CODE/ParaView/ >>>>>>> >>> ParaView/VTK/IO/Parallel/vtkWindBladeReader.cxx, line 942 >>>>>>> >>> vtkWindBladeReader (0x3a0c800): WindBladeReader error reading >>>>>>> file: >>>>>>> >>> >>>>>>> /home/acbauer/DATA/VTKLargeData/Data/WindBladeReader/test1_topo.wind >>>>>>> >>> Premature EOF while reading block of data. Expected 896000 but >>>>>>> got 0 >>>>>>> >>> >>>>>>> >>> I just assumed that it was getting bad results so I didn't check >>>>>>> the >>>>>>> >>> serial >>>>>>> >>> output with the parallel output. In either case the code should >>>>>>> be >>>>>>> >>> changed >>>>>>> >>> before enabling it in serial so that it reads the files >>>>>>> correctly and >>>>>>> >>> doesn't produce any warning messages. >>>>>>> >>> >>>>>>> >>> Andy >>>>>>> >>> >>>>>>> >>> On Wed, Jul 11, 2012 at 12:04 PM, Sohail Shafii < >>>>>>> sohailsha...@yahoo.com> >>>>>>> >>> wrote: >>>>>>> >>> >>>>>>> >>> I'm not aware of any option to build/link against mpi-io. This >>>>>>> is just a >>>>>>> >>> standard build with mpi support that suffers from this issue. >>>>>>> >>> >>>>>>> >>> The ParaView website's builds also have the same bug. >>>>>>> >>> >>>>>>> >>> ________________________________ >>>>>>> >>> From: "Woodring, Jonathan L" <woodr...@lanl.gov> >>>>>>> >>> To: Sohail Shafii <sohailsha...@yahoo.com>; Andy Bauer >>>>>>> >>> <andy.ba...@kitware.com>; Sebastien Jourdain >>>>>>> >>> <sebastien.jourd...@kitware.com> >>>>>>> >>> Cc: "migic...@gmail.com" <migic...@gmail.com>; " >>>>>>> paraview@paraview.org" >>>>>>> >>> <paraview@paraview.org> >>>>>>> >>> Sent: Tuesday, July 10, 2012 10:06 AM >>>>>>> >>> >>>>>>> >>> Subject: Re: [Paraview] ParaView thinks that it does not have a >>>>>>> wind >>>>>>> >>> blade >>>>>>> >>> reader >>>>>>> >>> >>>>>>> >>> I added the MPI calls to be in sync with what was being added in >>>>>>> the >>>>>>> >>> simulation. >>>>>>> >>> >>>>>>> >>> In the SuperComputing demo last year, we updated both the HiGrad >>>>>>> FireTec >>>>>>> >>> to >>>>>>> >>> use MPI-IO and likewise ParaView to do the same thing. >>>>>>> >>> >>>>>>> >>> It w >>>>>>> >> >>>>>>> >> >>>>>>> >> >>>>>>> >> -- >>>>>>> >> David E DeMarle >>>>>>> >> Kitware, Inc. >>>>>>> >> R&D Engineer >>>>>>> >> 21 Corporate Drive >>>>>>> >> Clifton Park, NY 12065-8662 >>>>>>> >> Phone: 518-881-4909 >>>>>>> >> >>>>>>> >> >>>>>>> > >>>>>>> > >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>> >>>>> >>>> >>> >> >
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