Re: [Condor-users] Variable expressions in transfer_input_files

[Greg Thain <gthain@xxxxxxxxxxx>]

Martin Steele wrote:
> Hi,
>
> I'm trying to expand file names for files I want to transfer as mentioned in the thread that ended with:
>
> https://lists.cs.wisc.edu/archive/condor-users/2008-June/msg00058.shtml
>
> However, I'm not having any success. Basically, I want to send the input file depending on the matched Arch, so I've been trying something like:
>
> transfer_input_files = stub.$$([Arch])

The $$([ syntax won't work in Condor 7.0, it was fixed in 7.1.  In this 
case, though, since you just need to lookup ARCH, and not evaluate it, 
the older $$(ARCH) syntax should work.  It should work, but it won't, 
because condor_submit is (un)helpfully trying to pre-verify that your 
input file exists before submitting the job.  Since condor_submit 
doesn't know what ARCH is going to expand to, it looks for the literal 
string stub.$$(ARCH), and doesn't find it, and returns the error message 
you see.  You can work around this problem by creating a zero-length 
file named, literally, "stub.$$(ARCH)".  condor_submit will see that 
this exists at submit time, but the shadow will expand it to the correct 
value at run time.  This is a hack.

-Greg