[faab]

Dear everyone,

I am working with a modified version of the ChtMultiRegion Solver, and the DP (double precision) is the one I set for the compiler. I am working on a 64-bit unit. My problem is that when the solver computes a very large number - say -1.45 to the power 21, to take an actual example - and stacks it in the allocated memory by passing this value to an existing variable, it is converted to 0. So of course, when I later use this variable in a division I get a segmentation fault. I do not understand how this process works, and because I use the DP, I do not see how to fix the issue. Could anyone give me a hand with this matter please ?

PS. In case it helps: I just ran a test where I state a=-1.45e+21, and "print" the value which is returned correctly by the solver. But when I do not use the "e" exponent and enter the full value (with 19 zeros) I get 0 in return. So I guess the issue/limitation comes from the number of digits, any ideas ?? Thanks !