6-months internship has nothing to do with what was promised Since sept 2013, I have been doing a Masters in mathematical finance. Our course requires us to do an off-cycle internship of 5 months minimum (typically, from April to September). 
During this internship, I'm supposed to do something that is at least remotely related to mathematics/finance, and at the end of the internship, I have to give a report of what I have done. The content of that report is supposed to contain actual mathematical researchs / developments / ideas, and is necessary for the obtention of my diploma.

Unfortunately, since my internship started I have been given absolutely no work fitting the requirements. 
What I've actually been tasked to do is repetitive work consisting in using a software to process tons of record from a database, generating new records as output, and making sure the generated data is consistent.  Whenever of these jobs fail I have to debug the software and propose a fix to make the job work. There is roughly ~50 millions records to be processed and the end goal is that all of them were processed correctly. As far as I can tell there is no way this will be done by the end of my internship, which is in 2 months.
What's worse is that the team I'm in is facing increasing pressure to have all these records processed soon, while the higher-ups are heavily implying that it is taking so long because we are slacking off. This is pretty annoying because I want to make a good impression and I'm working as good as possible, but at the same time I don't feel like it is worth the effort to work extra-hard on this, given how little recognition I get and given that I will leave before the positive consequences of my work can affect me.

What can I do in my situation ? I haven't started my internship report yet (I don't even know what subject I could do it on), and I know I will to do it on my own time. At the same time the repetitive nature of my work makes me pretty burned out and whenever I never feel like working on maths for several hours.

TLDR: my 6 months internship that is supposed to be about mathematical finance is actually about doing extremely tedious work, and I have to complete a report by the end about all the mathematical research I'm supposed to have done.

What would you do in that situation ?
There are two people who can help you


Your immediate manager
Your advisor (or tutor if you don't have one)


Talk to your manager first about the requirements stated by your university, and how to translate your work into a working paper or report worthy of submission in an academic institute. I am sure he will be of help.

Then try talking to your advisor/tutor on whatever was discussed with your manager. He/She can advise you on planning your report.

I had been into such a situation, and my advisor suggested a way to tweak my working to do some additional tests/work. That extra work made my work eligible for an academic report.