[Usecase-workshop] Financial Markets use-case

[John Easton]

My name is John Easton and I work for IBM in the UK.  This use-case is not 
attributable to any specific institution (they are unwilling to have their 
name known), but is representative of a great many financial institutions 
who are all struggling with the same sorts of problems.

An automatic trading use case

A lot of financial markets organisations are trying to address the 
challenges they face around their day-to-day business.  In this space, the 
key thing is latency.  The faster you can return a response, the more 
chance you have of getting to the market first (beating your competitors). 
 So... based on some trigger (likely to be a financial datafeed) from 
which millions of messages will be arriving every second you need to:

- get the message
- understand the message (i.e. is this something I care about)

- if yes, then I need to invoke the appropriate calculations to make a 
trading decision.  I also need to perform all of the necessary 
calculations that allow me to comply with the regulatory framework I am 
operating within
- If no, then I just throw away the message

- upon completing the calculation, I need to drive the appropriate action 
to the trading system.

Most of the grids these organisations have in place today have 1000s (in 
some cases 10s of 1000s) of compute nodes.  These need to be serviced with 
relatively small (likely a few kB in this sort of scenario - but for 
extremely exotic options this could easily be GB) of data.

I need to turn these calculations around as fast as possible.  A simple 
calculation needs to complete in less than a millisecond.  A more involved 
calculation might take a few minutes, but this is calculation time - the 
grid infrastructure needs to do all of 'its thing' in a matter of a few 
milliseconds / microseconds.

All of the financial calculation code is typically legacy C++ and ideally 
needs to be used in this environment without requiring modification.


Hopefully this use-case is of interest to you?

Best wishes,
John
Senior Consulting IT Specialist and Technical Staff Member
IBM Systems & Technology Group Infrastructure Innovation
Int:  7-313796.  Ext:  +44-1256-343796

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