Dear all,

I found that the issue can be resolved by module unload "tbb/2021.6.0" (The 
tbb I thought will be used). It seems that candi is trying to build the 
tbb/2018U2 when the flag "DEAL_II_FORCE_BUNDLED_TBB" is set to be on (I saw 
that in build directory there is a directory called "bundled" where I can 
find "tbb-2018_U2").

Best Regards,
Jau-Uei Chen

mafe...@gmail.com 在 2023年4月28日 星期五下午3:08:33 [UTC-5] 的信中寫道:

> Interestingly, the cmake configuration also complains about the following 
> unused variable. This variable is now named DEAL_II_FORCE_BUNDLED_TBB. 
> Can someone of the candi developers have a look?
>
> CMake Warning:
>   Manually-specified variables were not used by the project:
>     DEAL_II_FORCE_BUNDLED_THREADS
>
> On Friday, April 28, 2023 at 2:05:36 PM UTC-6 Marc Fehling wrote:
>
>> Hello Jau-Uei Chen,
>>
>> the configuration did not pick up the TBB version you provided, and 
>> instead uses the version that comes bundled with deal.II (i.e. tbb 2018U2). 
>> However, the linker still tries to link against tbb 2021.6.0. Something got 
>> mixed up in the configuration phase.
>>
>> Marc
>>
>>
>> -- Include 
>> /org/groups/ceo/chenju/dealii/install/tmp/unpack/deal.II-v9.4.0/cmake/configure/configure_10_tbb.cmake
>> -- TBB_LIBRARY not found! The call was:
>> --     FIND_LIBRARY(TBB_LIBRARY NAMES tbb HINTS PATH_SUFFIXES lib lib64 
>> lib)
>> -- TBB_DEBUG_LIBRARY not found! The call was:
>> --     FIND_LIBRARY(TBB_DEBUG_LIBRARY NAMES tbb_debug HINTS PATH_SUFFIXES 
>> lib lib64 lib)
>> -- TBB_INCLUDE_DIR not found! The call was:
>> --     FIND_PATH(TBB_INCLUDE_DIR tbb/tbb_stddef.h HINTS PATH_SUFFIXES 
>> include include/tbb tbb)
>> -- Found TBB_INCLUDE_DIR
>> --   TBB_VERSION: 2021.6
>> --   TBB_LIBRARIES: *** Required variable "TBB_LIBRARY" set to NOTFOUND 
>> ***
>> -- Could NOT find TBB
>> -- DEAL_II_WITH_TBB has unmet external dependencies.
>> -- Performing Test DEAL_II_HAVE_FLAG_Wno_parentheses
>> -- Performing Test DEAL_II_HAVE_FLAG_Wno_parentheses - Success
>> -- DEAL_II_WITH_TBB successfully set up with bundled packages.
>>
>>
>> [ 50%] Linking CXX executable step-6
>> /usr/bin/ld.bfd: CMakeFiles/step-6.dir/step-6.cc.o: in function 
>> `tbb::detail::d1::wait_context::add_reference(long)':
>> /opt/apps/sysnet/intel/oneapi/2022.2/tbb/2021.6.0/include/oneapi/tbb/detail/_task.h:114:
>>  
>> undefined reference to `tbb::detail::r1::notify_waiters(unsigned long)'
>> On Friday, April 28, 2023 at 1:28:04 PM UTC-6 jau...@gmail.com wrote:
>>
>>> Dear all,
>>>
>>> I just encounter a similar issue and am wondering if there is a solution 
>>> to fix it.
>>>
>>> Please see the attachment for the error message I got. This message is 
>>> from dealii 9.4.0 (I also tried dealii 9.4.2 and got a similar message.). 
>>>
>>> During the installation of dealii 9.4.0, no issue is showing up though 
>>> (The installation is carried out by using candi. I also attach the log 
>>> here.). The tbb I used is "tbb/2021.6.0" (Intel(R) oneAPI Threading 
>>> Building Blocks for intel64).
>>>
>>> Any comment or suggestion is greatly appreciated.
>>>
>>> Best Regards,
>>> Jau-Uei Chen
>>>
>>> Deepika Kushwah 在 2022年9月19日 星期一晚上11:08:55 [UTC-5] 的信中寫道:
>>>
>>>> Thanks for the reply.
>>>>
>>>>
>>>> I am using the latest version of dealii 9.4.0.
>>>> With this version I am getting the error as mentioned in the previous 
>>>> email.
>>>>
>>>>
>>>>
>>>>
>>>> Thanks & Regards
>>>> Deepika
>>>>
>>>> On Tue, Sep 20, 2022 at 2:48 AM Marc Fehling <mafe...@gmail.com> wrote:
>>>>
>>>>> Hello Deepika,
>>>>>
>>>>> which version of deal.II are you using?
>>>>>
>>>>> From your screenshots, it looks like you are using Intel oneAPI TBB. 
>>>>> We started to support oneAPI versions with deal.II 9.4.0. Could you try 
>>>>> our 
>>>>> latest release?
>>>>>
>>>>> Marc
>>>>>
>>>>> On Sunday, September 18, 2022 at 6:18:51 AM UTC-6 
>>>>> deepika...@iitgoa.ac.in wrote:
>>>>>
>>>>>> Hello Everyone,
>>>>>>
>>>>>> I am a beginner in deal.II.
>>>>>> While running any tutorial on centos7 I am getting the following 
>>>>>> errors (please see attachments).
>>>>>>
>>>>>> How to proceed?
>>>>>>
>>>>>>
>>>>>> Thanks & Regards
>>>>>> Deepika
>>>>>>
>>>>> -- 
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>>>>>  
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>>>>> .
>>>>>
>>>>
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