[Radiance-general] ranimate Host directive

[Jack de Valpine]

Hi Terrance,

I remember having to deal with this a while back, but I do not recall 
exactly the solution. Nevertheless here are a couple of things to look at:

   1. ssh - you may need to set the environment for ssh, when used this
      way (eg ssh command_to_run) it does not use the PATH information
      found for your standard login shell, you can set the correct PATH
      and RAYPATH. This is done in an "environment" file for ssh, check
      the man page for ssh for further information.
   2. host specification
         1. explicit path in hosts specification- I think that you might
            want try specifying an explicit path (rather than ~) to the
            location where the host needs to look for the animation
            related files. Not sure if it makes a difference, you may
            need to try out the following as tests:
               1. relative to user home dir - ../../../path_to_render_dir
               2. path from root - /path_to_render_dir
         2. mount point - I seem to recall that the easiest thing to do
            is have the mount point and user be the same on master and
            slave nodes. So if you are mounting to /RENDER which is what
            your slave (render host) nodes see then you should have this
            in your path on the master node. This way you can just cd to
            /RENDER on the master node and run  ranimate job.ranim and
            have master and slave nodes seeing the same directory
            hierarchy. And this way you do not need to specify path or
            user in the host specification, eg host= render-host 1
            rather than host= render-host 1 path_to_render_dir alt_user
         3. different users - wouldn't it be easier to just have the
            same user replicated onto the slave nodes?
   3. samba - I am not sure about this, I have never really been clear
      on the difference between the file locking protocols between samba
      and NFS, I guess I will be interested to hear if this works or
      note, however you may end up needing to use NFS.

Hope this helps.

-Jack

-- 
# Jack de Valpine
# president
#
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Terrance McMinn wrote:
>
> Hello list,
>
> I am having folder specification difficulties setting up a test 
> ranimate across multiple computers (using samba)
>
> My test.ran files is:
> RIF= test.rif
> DIRECTORY= animation_process_network
> VIEWFILE= anim.vf
> DISKSPACE= 100
> #host= localhost 1 ~/test/current/animation_process_network masteruser
> host= remote 1 ~/test/test/current/animation_process_network testuser
> TRANSFER= ran2tiff -W 0.7 -h -z frame*.hdr
>
> Notes:
> 1. Assume the remote workstation is called remote
> 2. The remote username is testuser
> 3. The master usernmae is masteruser
> 4. I have commented out the localuser host as this works
> 5. ssh has been set up using RSA keys pairings
>    Setup ssh key pairs:
>    On the host system: ssh-keygen -t rsa (use enter for no passhrase)
>    ssh-copy-id -i /home/masteruser/.ssh/id_rsa.pub testuser at remote
> 6. Samba mount:
>    ssh testuser at remote
>    smbmount //master/masteruser ~/test -o username=masteruser
>
> On the host system I start the process with:
> ranimate test.ran >& animation_process_network/anim.err
>
> The anim.err file shows:
> Process started on remote
> remote: Error output from: rpict @animation_process_network/render.opt 
> -vp -505.575 812.796 321.761 -vd 0.608355 -0.458502 -0.436495 -vu 
> 0.396724 -0.283029 0.873215 -vh 56.547 -vv 41.1546 -w0 -o 
> animation_process_network/frame%03d.unf -x 3708 -y 1644 -S 1 
> octrees/test.oct < animation_process_network/anim.vf
> bash: line 0: cd: ~masteruser: No such file or directory
> bash: animation_process_network/anim.vf: No such file or directory
> ranimate: error rendering frames 1 through 3
>
> 1. What is confusing is where does the 'masteruser' come from (it is 
> the username on the master workstation) when processing on the remote 
> workstation the username is testuser!
> 2. Is the 'local directory' parameter on the host line (parameter 3) 
> suppose to point to the same folder as the test.ran file is located 
> (ie the same location as in the localhost line). Obviously on the 
> remote workstation this folder 'smbmount' at some point x in the local 
> filesystem.
> 3. The rpict command when run on the remote workstation works quite 
> happily in the same folder.
>
> I am using Linux - specifically Kubuntu 9.10 and 
> radiance-3R9+20090811-1 (latest version)
>
> Regards
> Terrance Mc Minn
>
> ------------------------------------------------------------------------
>
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