[Boost-users] big integer and rayleigh distribution

Dear list, i have a collection of big integers like this 1221868803.60525. I use this values in a Rayleigh distribution to simulate a problem. Now I will develop a application which simulate this problem. This application is time critical. It should trigger alerts. So my questions are: 1. Which lib from Boost can I use? 2. Which data type from this lib can I use for this big integer? 3. Is this lib high performance dependent? Best regards, Hakan Calim