[gmx-users] Re: debug from floating exceptions in g_energy (v3.1)
Lynne E. Bilston
l.bilston at unsw.edu.au
Fri Mar 15 00:04:18 CET 2002
Following David's directions, I get the following:
Reading frame 0 time 0.000 signal Floating point
exception at [do_enx:296 +0x14,0x12001def4] tmp1 = fr->ener[i].eav;
> 0 do_enx(fp = 0, fr = 0x14003d360) ["enxio.c":296, 0x12001def4]
1 main(argc = 1, argv = 0x11fffc018) ["g_energy.c":922, 0x12001182c]
(dbx) list 295,300
>* 296 tmp1 = fr->ener[i].eav;
299 bOK = bOK && do_real(tmp1);
300 fr->ener[i].eav = tmp1;
(dbx) print tmp1
(dbx) print fr->ener[i].eav
Denormalized number 0xc0087c30
The fp error is the same for all edr files I've tried, not just a few.
>By the way, did you try gmxdump -e ener.edr | more ?
>Does that also crash on the same energy file?
Yes it does, also with an fp error.
(snipped usual header stuff)
Opened pr.edr as single precision energy file
The same energy files read fine in v3.0 of g_energy.
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