Turning off HydroDyn Summary file causes Segmentation Fault

[evan-gaertner]

I came across this bug trying to run a large number of FAST simulations. My HydroDyn summary files for the OC3/Hywind spar are about ~4MB due to its long joint, member, and radiation tables. I would like to avoid printing this since it eats up valuable disk space on my cluster allocation. However, setting "HDSum" to "False" results in a Segmentation fault. The model otherwise runs fine when set to "True"

Error occurred on the following builds: Windows, compiles with Cygwin, single precision, 64 bit, release mode, openfast-v2 and dev Linux, gcc 8.1.0, single precision, 64 bit, release mode, openfast-v2 and dev

Using the "5MW_OC3Spar_DLL_WTurb_WavesIrr" model from r-test

OpenFAST input file heading: FAST Certification Test #24: NREL 5.0 MW Baseline Wind Turbine with OC3 Hywind Configuration, for use in offshore analysis

Running ElastoDyn. Running AeroDyn. Running AirfoilInfo. Running BEM. Running UnsteadyAero. Warning: Turning off Unsteady Aerodynamics because C_nalpha is 0. BladeNode = 1, Blade = 1 Warning: Turning off Unsteady Aerodynamics because C_nalpha is 0. BladeNode = 1, Blade = 2 Warning: Turning off Unsteady Aerodynamics because C_nalpha is 0. BladeNode = 1, Blade = 3 Running InflowWind. Running ServoDyn. Running ServoDyn Interface for Bladed Controllers. Running HydroDyn. Generating incident wave kinematics and current time history. Reading in WAMIT output with root name "C:\Users\egaertne\OptFAST\temp\testing0x6_5\nrel5mw_spar\HydroData/Spar". Computing radiation impulse response functions and wave diffraction forces.

Program received signal SIGSEGV: Segmentation fault - invalid memory reference.

Backtrace for this error:

0 0xffffffffffffffff in ???

1 0xffffffffffffffff in ???

2 0xffffffffffffffff in ???

3 0xffffffffffffffff in ???

4 0xffffffffffffffff in ???

5 0xffffffffffffffff in ???

6 0xffffffffffffffff in ???

7 0xffffffffffffffff in ???

8 0xffffffffffffffff in ???

9 0xffffffffffffffff in ???

10 0xffffffffffffffff in ???

11 0xffffffffffffffff in ???

12 0xffffffffffffffff in ???

13 0xffffffffffffffff in ???

14 0xffffffffffffffff in ???

15 0xffffffffffffffff in ???

16 0xffffffffffffffff in ???

17 0xffffffffffffffff in ???

18 0xffffffffffffffff in ???

19 0xffffffffffffffff in ???

  3 [main] openfast 4460 cygwin_exception::open_stackdumpfile: Dumping stack trace to openfast.exe.stackdump

[rafmudaf]

@evan-gaertner are you on the latest commit on the dev branch? This bug was fixed in #207.

I'm closing this issue, but please reopen if this is indeed still a bug.

[evan-gaertner]

Ah you're absolutely right, I was a couple of commits behind. Sorry to bug you with this!

Thanks as always, Evan