I am trying to implement Vcopy for complex data type. What I started with was adding this line to Vmath.cpp in the template section. line 1082 template LIB_UTILITIES_EXPORT void Vcopy( int n, const std::complex<Nektar::NekDouble> *x, const int incx, std::complex<Nektar::NekDouble> *y, const int incy); but that seems to be insufficient because it compiles but gives the following error: dyld: Symbol not found: __ZN5Vmath5VcopyINSt3__17complexIdEEEEviPKT_iPS4_i I started looking at how the coefficients are handled in the FFT section, but It wasn't directly clear what the best approach to copying an array of complex numbers would be? Regards, ~Kurt -- Kurt Sansom Research Assistant Cardiovascular and Multiphase Flow Lab University of Washington
Hi Kurt, Can you supply the datatypes and function call from where you are calling the Vcopy routine? On the face of things, it would seem that the Vmath declaration is okay, unless I'm missing something obvious. Cheers, Dave
On 21 Mar 2017, at 19:17, Kurt Sansom <kayarre@gmail.com> wrote:
I am trying to implement Vcopy for complex data type. What I started with was adding this line to Vmath.cpp in the template section.
line 1082
template LIB_UTILITIES_EXPORT void Vcopy( int n, const std::complex<Nektar::NekDouble> *x, const int incx, std::complex<Nektar::NekDouble> *y, const int incy);
but that seems to be insufficient because it compiles but gives the following error:
dyld: Symbol not found: __ZN5Vmath5VcopyINSt3__17complexIdEEEEviPKT_iPS4_i
I started looking at how the coefficients are handled in the FFT section, but It wasn't directly clear what the best approach to copying an array of complex numbers would be?
Regards, ~Kurt
-- Kurt Sansom Research Assistant Cardiovascular and Multiphase Flow Lab University of Washington _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users
I am using something like //struct has variable Array<OneD, Array<OneD, NekCDouble> > m_unsteady; // so the code instantiates struct->m_complexArray = <OneD, Array<OneD, std::complex<NekDouble> > > (npts); Array<OneD, Array<OneD, std::complex<NekDouble> > > ukwbc(npts); for (i = 0, i<npts; i++) { ukwbc[i] = Array<OneD, std::complex<NekDouble> > (M-1); variable[i] = Array<OneD, std::complex<NekDouble> > (M-1); for(k = 0; k < M-1; ++k) { ukwbc[i][k] = std::complex<NekDouble> (5.0, 1.0); } Vmath::Vcopy(M-1, ukwbc[i], 1, variable[i],1); } regards, ~Kurt On Wed, Mar 22, 2017 at 7:36 AM, David Moxey <d.moxey@imperial.ac.uk> wrote:
Hi Kurt,
Can you supply the datatypes and function call from where you are calling the Vcopy routine? On the face of things, it would seem that the Vmath declaration is okay, unless I'm missing something obvious.
Cheers,
Dave
On 21 Mar 2017, at 19:17, Kurt Sansom <kayarre@gmail.com> wrote:
I am trying to implement Vcopy for complex data type. What I started with was adding this line to Vmath.cpp in the template section.
line 1082
template LIB_UTILITIES_EXPORT void Vcopy( int n, const std::complex<Nektar::NekDouble> *x, const int incx, std::complex<Nektar::NekDouble> *y, const int incy);
but that seems to be insufficient because it compiles but gives the following error:
dyld: Symbol not found: __ZN5Vmath5VcopyINSt3__ 17complexIdEEEEviPKT_iPS4_i
I started looking at how the coefficients are handled in the FFT section, but It wasn't directly clear what the best approach to copying an array of complex numbers would be?
Regards, ~Kurt
-- Kurt Sansom Research Assistant Cardiovascular and Multiphase Flow Lab University of Washington _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users
-- Kurt Sansom
Hi Kurt, After you compiled, did you do a 'make install' before running your code? It may be loading an 'old' version of the LibUtilities library elsewhere on your system, rather the one with your std::complex template instantiation. You could look at 'otool -L <your-executable>' to see which libraries it is actually choosing to load. Cheers, Chris On 23/03/17 04:36, Kurt Sansom wrote:
I am using something like
//struct has variable Array<OneD, Array<OneD, NekCDouble> > m_unsteady;
// so the code instantiates struct->m_complexArray = <OneD, Array<OneD, std::complex<NekDouble> > > (npts); Array<OneD, Array<OneD, std::complex<NekDouble> > > ukwbc(npts);
for (i = 0, i<npts; i++) { ukwbc[i] = Array<OneD, std::complex<NekDouble> > (M-1); variable[i] = Array<OneD, std::complex<NekDouble> > (M-1);
for(k = 0; k < M-1; ++k) { ukwbc[i][k] = std::complex<NekDouble> (5.0, 1.0); } Vmath::Vcopy(M-1, ukwbc[i], 1, variable[i],1); }
regards, ~Kurt
On Wed, Mar 22, 2017 at 7:36 AM, David Moxey <d.moxey@imperial.ac.uk <mailto:d.moxey@imperial.ac.uk>> wrote:
Hi Kurt,
Can you supply the datatypes and function call from where you are calling the Vcopy routine? On the face of things, it would seem that the Vmath declaration is okay, unless I'm missing something obvious.
Cheers,
Dave
> On 21 Mar 2017, at 19:17, Kurt Sansom <kayarre@gmail.com <mailto:kayarre@gmail.com>> wrote: > > I am trying to implement Vcopy for complex data type. What I started with was adding this line to Vmath.cpp in the template section. > > line 1082 > > template LIB_UTILITIES_EXPORT void Vcopy( int n, const std::complex<Nektar::NekDouble> *x, const int incx, std::complex<Nektar::NekDouble> *y, const int incy); > > but that seems to be insufficient because it compiles but gives the following error: > > dyld: Symbol not found: __ZN5Vmath5VcopyINSt3__17complexIdEEEEviPKT_iPS4_i > > > I started looking at how the coefficients are handled in the FFT section, but It wasn't directly clear what the best approach to copying an array of complex numbers would be? > > Regards, > ~Kurt > > -- > Kurt Sansom > Research Assistant > Cardiovascular and Multiphase Flow Lab > University of Washington > _______________________________________________ > Nektar-users mailing list > Nektar-users@imperial.ac.uk <mailto:Nektar-users@imperial.ac.uk> > https://mailman.ic.ac.uk/mailman/listinfo/nektar-users <https://mailman.ic.ac.uk/mailman/listinfo/nektar-users>
-- Kurt Sansom
_______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users
-- Chris Cantwell Imperial College London South Kensington Campus London SW7 2AZ Email: c.cantwell@imperial.ac.uk www.imperial.ac.uk/people/c.cantwell
Thanks Chris, That was the issue. I thought the libraries were being grabbed from build directory instead of the installed directory. "make install" fixed the error. ~Kurt On Thu, Mar 23, 2017 at 3:37 AM, Chris Cantwell <c.cantwell@imperial.ac.uk> wrote:
Hi Kurt,
After you compiled, did you do a 'make install' before running your code? It may be loading an 'old' version of the LibUtilities library elsewhere on your system, rather the one with your std::complex template instantiation.
You could look at 'otool -L <your-executable>' to see which libraries it is actually choosing to load.
Cheers, Chris
On 23/03/17 04:36, Kurt Sansom wrote:
I am using something like
//struct has variable Array<OneD, Array<OneD, NekCDouble> > m_unsteady;
// so the code instantiates struct->m_complexArray = <OneD, Array<OneD, std::complex<NekDouble> > > (npts); Array<OneD, Array<OneD, std::complex<NekDouble> > > ukwbc(npts);
for (i = 0, i<npts; i++) { ukwbc[i] = Array<OneD, std::complex<NekDouble> > (M-1); variable[i] = Array<OneD, std::complex<NekDouble> > (M-1);
for(k = 0; k < M-1; ++k) { ukwbc[i][k] = std::complex<NekDouble> (5.0, 1.0); } Vmath::Vcopy(M-1, ukwbc[i], 1, variable[i],1); }
regards, ~Kurt
On Wed, Mar 22, 2017 at 7:36 AM, David Moxey <d.moxey@imperial.ac.uk <mailto:d.moxey@imperial.ac.uk>> wrote:
Hi Kurt,
Can you supply the datatypes and function call from where you are calling the Vcopy routine? On the face of things, it would seem that the Vmath declaration is okay, unless I'm missing something obvious.
Cheers,
Dave
> On 21 Mar 2017, at 19:17, Kurt Sansom <kayarre@gmail.com <mailto:kayarre@gmail.com>> wrote: > > I am trying to implement Vcopy for complex data type. What I started with was adding this line to Vmath.cpp in the template section. > > line 1082 > > template LIB_UTILITIES_EXPORT void Vcopy( int n, const std::complex<Nektar::NekDouble> *x, const int incx, std::complex<Nektar::NekDouble> *y, const int incy); > > but that seems to be insufficient because it compiles but gives the following error: > > dyld: Symbol not found: __ZN5Vmath5VcopyINSt3__17complexIdEEEEviPKT_iPS4_i > > > I started looking at how the coefficients are handled in the FFT section, but It wasn't directly clear what the best approach to copying an array of complex numbers would be? > > Regards, > ~Kurt > > -- > Kurt Sansom > Research Assistant > Cardiovascular and Multiphase Flow Lab > University of Washington > _______________________________________________ > Nektar-users mailing list > Nektar-users@imperial.ac.uk <mailto:Nektar-users@imperial.ac.uk> > https://mailman.ic.ac.uk/mailman/listinfo/nektar-users <https://mailman.ic.ac.uk/mailman/listinfo/nektar-users>
-- Kurt Sansom
_______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users
-- Chris Cantwell Imperial College London South Kensington Campus London SW7 2AZ Email: c.cantwell@imperial.ac.uk www.imperial.ac.uk/people/c.cantwell
_______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users
-- Kurt Sansom
participants (3)
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Chris Cantwell
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David Moxey
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Kurt Sansom