[FLASH-USERS] Question on compiling Z-pinch example

[pchang]

Hi Baowei,

Thank you! Yes, it was the problem that lapack library was not 
installed. After installing the lapack library and adding the line you 
suggested in Makefile.h, it worked.

I didn't install lapack library before and have no issues running other 
examples. Right now, I have HDF5, HYPRE, NetCDF, Lapack installed for 
runing FLASH. Are there any other libraries that may be needed? Thank you.

Cheers,

Po-Yu

Liu, Baowei 於 2025/12/1 上午 04:53 寫道:
> Sorry I meant to say: in your Makefile.h
>
>> On Nov 30, 2025, at 3:44 PM, Liu, Baowei <baowei.liu at rochester.edu> 
>> wrote:
>>
>> Hello Po-Yu,
>>
>> These look like Lapack functions. Do you have the lapack library 
>> installed and linked? You might want to try manually adding the 
>> installed path to LIB_LAPACK =  in your Makefile.in file — something 
>> like:
>>
>> LIB_LAPACK = -L YOUR_LAPACK_LIB_PATH -llapack -lblas
>>
>> Let me know if still issues or other questions.
>>
>> Thanks,
>> Baowei
>> ________________________________
>> Baowei Liu
>> Center for Integrated Research Computing
>> University of Rochester
>> Bausch&Lomb 455A
>> (585)276-4105
>> ________________________________
>>
>>> On Nov 27, 2025, at 11:45 PM, pchang <pchang at mail.ncku.edu.tw> wrote:
>>>
>>> Dear FLASH developers and users,
>>>
>>> I am using FLASH (v4.8) to simulate a 1D cylindrical Z-Pinch as a 
>>> start for simulating Z-pinch. I tried to use the example "Z-pinch 
>>> Simulation" and followed the manual to setup:
>>>
>>> ./setup -auto magnetoHD/ZPinch -1d +cylindrical +ug +usm3t +mtmmmt 
>>> species=fill,line,vacu +mgd mgd_meshgroups=6 +hdf5typeio
>>>
>>> However, when I compiled the code by using "make", I got the 
>>> following error messages:
>>>
>>> /bin/ld: /tmp/cc0mvl41.ltrans23.ltrans.o: in function 
>>> `__gr_uhyprelinearleastsquares_MOD_lsq.constprop.0':
>>> /home/pchang/Downloads/FLASH4.8/object/gr_uhypreLinearLeastSquares.F90:129: 
>>> undefined reference to `dgelsy_'
>>> /bin/ld: 
>>> /home/pchang/Downloads/FLASH4.8/object/gr_uhypreLinearLeastSquares.F90:129: 
>>> undefined reference to `dgelsy_'
>>> /bin/ld: /tmp/cc0mvl41.ltrans23.ltrans.o: in function 
>>> `__gr_uhypreparamesh_MOD_initweightset.constprop.0':
>>> /home/pchang/Downloads/FLASH4.8/object/gr_uhypreLinearLeastSquares.F90:76: 
>>> undefined reference to `dgeqrf_'
>>> /bin/ld: 
>>> /tmp/cc0mvl41.ltrans23.ltrans.o:/home/pchang/Downloads/FLASH4.8/object/gr_uhypreLinearLeastSquares.F90:83: 
>>> undefined reference to `dorgqr_'
>>> /bin/ld: /tmp/cc0mvl41.ltrans23.ltrans.o: in function 
>>> `__gr_uhypreparamesh_MOD_initweightset.constprop.0':
>>> /home/pchang/Downloads/FLASH4.8/object/gr_uhypreLinearLeastSquares.F90:146: 
>>> undefined reference to `dgesv_'
>>> /bin/ld: 
>>> /tmp/cc0mvl41.ltrans23.ltrans.o:/home/pchang/Downloads/FLASH4.8/object/gr_uhypreLinearLeastSquares.F90:76: 
>>> undefined reference to `dgeqrf_'
>>> /bin/ld: 
>>> /tmp/cc0mvl41.ltrans23.ltrans.o:/home/pchang/Downloads/FLASH4.8/object/gr_uhypreLinearLeastSquares.F90:146: 
>>> undefined reference to `dgesv_'
>>> collect2: error: ld returned 1 exit status
>>> make: *** [Makefile:384: flash4] Error 1
>>>
>>> Did I miss anything that caused the error? Thank you.
>>>
>>> Cheers,
>>>
>>> Po-Yu
>>>
>>> -- 
>>> Po-Yu Chang
>>> Associate Professor
>>> Institute of Space and Plasma Sciences (ISAPS)
>>> National Cheng Kung University (NCKU)
>>> No.1, University Road,
>>> Tainan City 70101, Taiwan
>>> (TEL) +886-6-2757575 ext. 65916
>>> pchang at mail.ncku.edu.tw
>>> https://capst.ncku.edu.tw/PGS/
>>>
>>> _______________________________________________
>>> flash-users mailing list
>>> flash-users at flash.rochester.edu
>>>
>>> For list info, including unsubscribe:
>>> https://flash.rochester.edu/mailman/listinfo/flash-users
>>
>
-- 
Po-Yu Chang
Associate Professor
Institute of Space and Plasma Sciences (ISAPS)
National Cheng Kung University (NCKU)
No.1, University Road,
Tainan City 70101, Taiwan
(TEL) +886-6-2757575 ext. 65916
pchang at mail.ncku.edu.tw
https://capst.ncku.edu.tw/PGS/
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