# What to do with the note : The following floating-point exceptions are signalling: IEEE\_DENORMAL? **URL:** \ **Category:** HADDOCK\ **Created:** [May 21, 2022, 6:50pm UTC](https://ask.bioexcel.eu/t/what-to-do-with-the-note-the-following-floating-point-exceptions-are-signalling-ieee-denormal/3727 "2022-05-21T18:50:32Z")\ **Posts on this page:** 1\ **Showing post:** 3
**Author:** ![vega235](https://avatars.discourse-cdn.com/v4/letter/v/cc9497/32.png) [@vega235](https://ask.bioexcel.eu/u/vega235)\ **Post date:** [May 21, 2022, 7:42pm UTC](https://ask.bioexcel.eu/t/what-to-do-with-the-note-the-following-floating-point-exceptions-are-signalling-ieee-denormal/3727/3 "2022-05-21T19:42:15Z")
Thank you for the prompt answer! The installation was done by the administrator of the server so I’m not sure how cns was compiled, but apparently I can’t run cns manually. The error I get is: %SETFPEPS increase value of MXFPEPS2 and recompile %SETFPEPS error encountered: Could not determine machine epsilon (CNS is in mode: SET ABORT=NORMal END) WARNING: program encountered a fatal error. However, in interactive mode, program execution will continue. Proceed at your own risk. Program will stop immediately. ============================================================ Maximum dynamic memory allocation: 0 bytes Maximum dynamic memory overhead: 0 bytes Program started at: on Program stopped at: 15:18:31 on 21-May-2022 CPU time used: 0.0180 seconds ============================================================ Note: The following floating-point exceptions are signalling: IEEE\_DENORMAL I just looked into this forum ([CNS errors before/after recompilation - #23 by garima.tanwar](https://ask.bioexcel.eu/t/cns-errors-before-after-recompilation/54/23)) to try and solve the compilation of cns. I followed the instructions to compile cns again but I get the same error. --- _[View the full topic](https://ask.bioexcel.eu/t/what-to-do-with-the-note-the-following-floating-point-exceptions-are-signalling-ieee-denormal/3727)._