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On Fri, Jul 12, 2024 at 4: 41 AM Ivan Luthfi <ivanluthfi5@ gmail. com> wrote: I get a warning about an incompatible pointer type when compile a code, anyone know how to fix this? make bin_MsFEM_poisson2D_DMDA mpicc -Wall -c PCMsFEM. c -isystem/home/ivan/petsc/opt-3.
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<div dir="ltr"><div dir="ltr">On Fri, Jul 12, 2024 at 4:41 AM Ivan Luthfi <<a href="mailto:ivanluthfi5@gmail.com">ivanluthfi5@gmail.com</a>> wrote:<br></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg5835925928275924777">
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I get a warning about an incompatible pointer type when compile a code, anyone know how to fix this? make bin_MsFEM_poisson2D_DMDA mpicc -Wall -c PCMsFEM. c -isystem/home/ivan/petsc/opt-3. 21. 2/include PCMsFEM. c: In function ‘PCCreate_MsFEM’: PCMsFEM. c: 59: 33:
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<div dir="ltr">I get a warning about an incompatible pointer type when compile a code, anyone know how to fix this?<br><br>make bin_MsFEM_poisson2D_DMDA<br>mpicc -Wall -c PCMsFEM.c -isystem/home/ivan/petsc/opt-3.21.2/include<br>PCMsFEM.c: In function ‘PCCreate_MsFEM’:<br>PCMsFEM.c:59:33: warning: assignment to ‘PetscErrorCode (*)(struct _p_PC *, PetscOptionItems *)’ {aka ‘int (*)(struct _p_PC *, struct _p_PetscOptionItems *)’} from incompatible pointer type ‘PetscErrorCode (*)(struct _p_PC *)’ {aka ‘int (*)(struct _p_PC *)’} [-Wincompatible-pointer-types]<br> 59 | pc->ops->setfromoptions = PCSetFromOptions_MsFEM;<br> | ^<br>mpicc -o bin_MsFEM_poisson2D_DMDA MsFEM_poisson2D_DMDA.o UserParameter.o FormFunction.o MsFEM.o PCMsFEM.o /home/ivan/petsc/opt-3.21.2/lib/libpetsc.so \<br> /home/ivan/petsc/opt-3.21.2/lib/libsuperlu_dist.so \<br> /home/ivan/petsc/opt-3.21.2/lib/libparmetis.so \<br> /home/ivan/petsc/opt-3.21.2/lib/libmetis.so \<br> /usr/lib64/atlas/liblapack.a /usr/lib64/libblas.so.3<br>/usr/bin/ld: cannot find /usr/lib64/atlas/liblapack.a: No such file or directory<br>/usr/bin/ld: cannot find /usr/lib64/libblas.so.3: No such file or directory<br>collect2: error: ld returned 1 exit status<br>make: *** [makefile:18: bin_MsFEM_poisson2D_DMDA] Error 1<br></div></div></blockquote><div><br></div><div>As the error message says, you are missing the second argument in your function. Here is an example from PETSc itself:</div><div><br></div><div> <a href="https://urldefense.us/v3/__https://petsc.org/main/src/ksp/pc/impls/jacobi/jacobi.c.html*PCSetFromOptions_Jacobi__;Iw!!G_uCfscf7eWS!YNTtUlBhxN1oRmv-wQa9_XiOB4c3ylJzvdw0j3lk02txhvFCujXDCzk2N1vy3r2K9JIIBbZ-f_3xM62LxM13$">https://petsc.org/main/src/ksp/pc/impls/jacobi/jacobi.c.html#PCSetFromOptions_Jacobi</a></div><div><br></div><div> Thanks,</div><div><br></div><div> Matt</div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg5835925928275924777"><div dir="ltr"><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div style="font-size:12.8px">Best regards,<br></div></div></div></div></div></div>
</div></blockquote></div><br clear="all"><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div>What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead.<br>-- Norbert Wiener</div><div><br></div><div><a href="https://urldefense.us/v3/__http://www.cse.buffalo.edu/*knepley/__;fg!!G_uCfscf7eWS!YNTtUlBhxN1oRmv-wQa9_XiOB4c3ylJzvdw0j3lk02txhvFCujXDCzk2N1vy3r2K9JIIBbZ-f_3xM1LCmhaP$" target="_blank">https://www.cse.buffalo.edu/~knepley/</a><br></div></div></div></div></div></div></div></div>