[petsc-users] one compilation error in PETSc-dev with enabling GPU and complex number
recrusader
recrusader at gmail.com
Sun Jan 29 13:35:58 CST 2012
Dear Matt,
Without PETSc library calls, the errors, that is
"/opt/apps/cuda/4.0/cuda/include/thrust/detail/device/cuda/detail/launch_closure.inl(51):>>
error: a value of type "int" cannot be assigned to an entity of type
"_ZNSt7complexIdE9_ComplexTE",
disappear.
Since I meet the errors when compiling PETSc-dev, is it possible to run
PETSc example?
Thank you very much.
Best,
Yujie
On Sun, Jan 29, 2012 at 1:29 PM, Matthew Knepley <knepley at gmail.com> wrote:
> On Sun, Jan 29, 2012 at 1:24 PM, recrusader <recrusader at gmail.com> wrote:
>
>> I have thought I send this question to CUSP mailing list. Therefore, I
>> wish I could get the same errors using the simple codes. However, the
>> errors disappear.
>>
>
> The code below has no PETSc library calls. I really do not understand what
> you are asking.
>
> Can you run a simple PETSc example with the GPU?
>
> cd src/snes/examples/tutorials
> make ex5
> ./ex5 -vec_type cusp -log_summary
>
> Matt
>
>
>> Is it possible to provide simple codes with PETSc to show the errors?
>> Thanks again.
>>
>> Best,
>> Yujie
>>
>> On Sun, Jan 29, 2012 at 1:20 PM, Matthew Knepley <knepley at gmail.com>wrote:
>>
>>> On Sun, Jan 29, 2012 at 1:05 PM, recrusader <recrusader at gmail.com>wrote:
>>>
>>>> Thank you very much, Matt,
>>>>
>>>> You mean the headers of the simple codes, I further simply the codes as
>>>
>>>
>>> This is a question for the CUSP mailing list.
>>>
>>> Thanks,
>>>
>>> Matt
>>>
>>>
>>>> "
>>>> #include <cusp/blas.h>
>>>> #include <cusp/array1d.h>
>>>>
>>>> int main(void)
>>>> {
>>>> cusp::array1d<std::complex<double>, cusp::host_memory> *x;
>>>>
>>>> x=new cusp::array1d<std::complex<double>, cusp::host_memory>(2,0.0);
>>>>
>>>> std::complex<double> alpha(1,2.0);
>>>> cusp::blas::scal(*x,alpha);
>>>>
>>>> return 0;
>>>> }"
>>>>
>>>> I got the same compilation results "
>>>> login1$ nvcc gputest.cu -o gputest
>>>> /opt/apps/cuda/4.0/cuda/bin/../include/cusp/detail/blas.inl(134):
>>>> warning: calling a __host__ function from a __host__ __device__
>>>> function is not allowed
>>>> detected during:
>>>> instantiation of "void
>>>> cusp::blas::detail::SCAL<T>::operator()(T2 &) [with
>>>> T=std::complex<double>, T2=std::complex<double>]"
>>>> /opt/apps/cuda/4.0/cuda/bin/../include/thrust/detail/host/for_each.inl(37):
>>>> here
>>>> instantiation of "InputIterator
>>>> thrust::detail::host::for_each(InputIterator, InputIterator,
>>>> UnaryFunction) [with
>>>> InputIterator=thrust::detail::normal_iterator<std::complex<double> *>,
>>>> UnaryFunction=cusp::blas::detail::SCAL<std::complex<double>>]"
>>>>
>>>> /opt/apps/cuda/4.0/cuda/bin/../include/thrust/detail/dispatch/for_each.h(46):
>>>> here
>>>> instantiation of "InputIterator
>>>> thrust::detail::dispatch::for_each(InputIterator, InputIterator,
>>>> UnaryFunction, thrust::host_space_tag) [with
>>>> InputIterator=thrust::detail::normal_iterator<std::complex<double> *>,
>>>> UnaryFunction=cusp::blas::detail::SCAL<std::complex<double>>]"
>>>> /opt/apps/cuda/4.0/cuda/bin/../include/thrust/detail/for_each.inl(51):
>>>> here
>>>> instantiation of "InputIterator
>>>> thrust::detail::for_each(InputIterator, InputIterator, UnaryFunction)
>>>> [with InputIterator=thrust::detail::normal_iterator<std::complex<double>
>>>> *>, UnaryFunction=cusp::blas::detail::SCAL<std::complex<double>>]"
>>>> /opt/apps/cuda/4.0/cuda/bin/../include/thrust/detail/for_each.inl(67):
>>>> here
>>>> instantiation of "void thrust::for_each(InputIterator,
>>>> InputIterator, UnaryFunction) [with
>>>> InputIterator=thrust::detail::normal_iterator<std::complex<double> *>,
>>>> UnaryFunction=cusp::blas::detail::SCAL<std::complex<double>>]"
>>>> (367): here
>>>> instantiation of "void
>>>> cusp::blas::detail::scal(ForwardIterator, ForwardIterator, ScalarType)
>>>> [with
>>>> ForwardIterator=thrust::detail::normal_iterator<std::complex<double>
>>>> *>, ScalarType=std::complex<double>]"
>>>> (748): here
>>>> instantiation of "void cusp::blas::scal(Array &,
>>>> ScalarType) [with Array=cusp::array1d<std::complex<double>,
>>>> cusp::host_memory>, ScalarType=std::complex<double>]"
>>>> gputest.cu(25): here
>>>>
>>>> "
>>>>
>>>> Thanks a lot.
>>>>
>>>> Best,
>>>> Yujie
>>>>
>>>> On 1/29/12, Matthew Knepley <knepley at gmail.com> wrote:
>>>> > On Sun, Jan 29, 2012 at 12:53 PM, recrusader <recrusader at gmail.com>
>>>> wrote:
>>>> >
>>>> >> Dear PETSc developers,
>>>> >>
>>>> >> With your help, I can successfully PETSc-deve with enabling GPU and
>>>> >> complex number.
>>>> >> However, when I compiled the codes, I met some errors. I also tried
>>>> to
>>>> >> use simple codes to realize the same function. However, the errors
>>>> >> disappear. One example is as follows:
>>>> >>
>>>> >> for the function "VecScale_SeqCUSP"
>>>> >> "#undef __FUNCT__
>>>> >> #define __FUNCT__ "VecScale_SeqCUSP"
>>>> >> PetscErrorCode VecScale_SeqCUSP(Vec xin, PetscScalar alpha)
>>>> >> {
>>>> >> CUSPARRAY *xarray;
>>>> >> PetscErrorCode ierr;
>>>> >>
>>>> >> PetscFunctionBegin;
>>>> >> if (alpha == 0.0) {
>>>> >> ierr = VecSet_SeqCUSP(xin,alpha);CHKERRQ(ierr);
>>>> >> } else if (alpha != 1.0) {
>>>> >> ierr = VecCUSPGetArrayReadWrite(xin,&xarray);CHKERRQ(ierr);
>>>> >> try {
>>>> >> cusp::blas::scal(*xarray,alpha);
>>>> >> } catch(char* ex) {
>>>> >> SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_LIB,"CUSP error: %s", ex);
>>>> >> }
>>>> >> ierr = VecCUSPRestoreArrayReadWrite(xin,&xarray);CHKERRQ(ierr);
>>>> >> }
>>>> >> ierr = WaitForGPU();CHKERRCUSP(ierr);
>>>> >> ierr = PetscLogFlops(xin->map->n);CHKERRQ(ierr);
>>>> >> PetscFunctionReturn(0);
>>>> >> } "
>>>> >>
>>>> >> When I compiled PETSc-dev, I met the following errors:
>>>> >> " /opt/apps/cuda/4.0/cuda/include/cusp/detail/blas.inl(134): warning:
>>>> >> calling a __host__ function from a __host__ __device__ function is
>>>> not
>>>> >> allowed
>>>> >> detected during:
>>>> >> instantiation of "void
>>>> >> cusp::blas::detail::SCAL<T>::operator()(T2 &) [with
>>>> >> T=std::complex<double>, T2=PetscScalar]"
>>>> >>
>>>> /opt/apps/cuda/4.0/cuda/include/thrust/detail/device/cuda/for_each.inl(72):
>>>> >> here
>>>> >> instantiation of "void
>>>> >>
>>>> thrust::detail::device::cuda::for_each_n_closure<RandomAccessIterator,
>>>> >> Size, UnaryFunction>::operator()() [with
>>>> >>
>>>> >>
>>>> RandomAccessIterator=thrust::detail::normal_iterator<thrust::device_ptr<PetscScalar>>,
>>>> >> Size=long,
>>>> UnaryFunction=cusp::blas::detail::SCAL<std::complex<double>>]"
>>>> >>
>>>> >>
>>>> /opt/apps/cuda/4.0/cuda/include/thrust/detail/device/cuda/detail/launch_closure.inl(51):
>>>> >> here
>>>> >> instantiation of "void
>>>> >>
>>>> >>
>>>> thrust::detail::device::cuda::detail::launch_closure_by_value(NullaryFunction)
>>>> >> [with
>>>> >>
>>>> NullaryFunction=thrust::detail::device::cuda::for_each_n_closure<thrust::detail::normal_iterator<thrust::device_ptr<PetscScalar>>,
>>>> >> long, cusp::blas::detail::SCAL<std::complex<double>>>]"
>>>> >>
>>>> >>
>>>> /opt/apps/cuda/4.0/cuda/include/thrust/detail/device/cuda/detail/launch_closure.inl(71):
>>>> >> here
>>>> >> instantiation of "size_t
>>>> >>
>>>> >>
>>>> thrust::detail::device::cuda::detail::closure_launcher_base<NullaryFunction,
>>>> >> launch_by_value>::block_size_with_maximal_occupancy(size_t) [with
>>>> >>
>>>> >>
>>>> NullaryFunction=thrust::detail::device::cuda::for_each_n_closure<thrust::detail::normal_iterator<thrust::device_ptr<PetscScalar>>,
>>>> >> long, cusp::blas::detail::SCAL<std::complex<double>>>,
>>>> >> launch_by_value=true]"
>>>> >>
>>>> >>
>>>> /opt/apps/cuda/4.0/cuda/include/thrust/detail/device/cuda/detail/launch_closure.inl(136):
>>>> >> here
>>>> >> instantiation of "thrust::pair<size_t, size_t>
>>>> >>
>>>> >>
>>>> thrust::detail::device::cuda::detail::closure_launcher<NullaryFunction>::configuration_with_maximal_occupancy(Size)
>>>> >> [with
>>>> >>
>>>> NullaryFunction=thrust::detail::device::cuda::for_each_n_closure<thrust::detail::normal_iterator<thrust::device_ptr<PetscScalar>>,
>>>> >> long, cusp::blas::detail::SCAL<std::complex<double>>>, Size=long]"
>>>> >>
>>>> >>
>>>> /opt/apps/cuda/4.0/cuda/include/thrust/detail/device/cuda/detail/launch_closure.inl(145):
>>>> >> here
>>>> >> [ 6 instantiation contexts not shown ]
>>>> >> instantiation of "InputIterator
>>>> >> thrust::detail::dispatch::for_each(InputIterator, InputIterator,
>>>> >> UnaryFunction, thrust::device_space_tag) [with
>>>> >>
>>>> >>
>>>> InputIterator=thrust::detail::normal_iterator<thrust::device_ptr<PetscScalar>>,
>>>> >> UnaryFunction=cusp::blas::detail::SCAL<std::complex<double>>]"
>>>> >> /opt/apps/cuda/4.0/cuda/include/thrust/detail/for_each.inl(51): here
>>>> >> instantiation of "InputIterator
>>>> >> thrust::detail::for_each(InputIterator, InputIterator, UnaryFunction)
>>>> >> [with
>>>> >>
>>>> InputIterator=thrust::detail::normal_iterator<thrust::device_ptr<PetscScalar>>,
>>>> >> UnaryFunction=cusp::blas::detail::SCAL<std::complex<double>>]"
>>>> >> /opt/apps/cuda/4.0/cuda/include/thrust/detail/for_each.inl(67): here
>>>> >> instantiation of "void thrust::for_each(InputIterator,
>>>> >> InputIterator, UnaryFunction) [with
>>>> >>
>>>> >>
>>>> InputIterator=thrust::detail::normal_iterator<thrust::device_ptr<PetscScalar>>,
>>>> >> UnaryFunction=cusp::blas::detail::SCAL<std::complex<double>>]"
>>>> >> (367): here
>>>> >> instantiation of "void
>>>> >> cusp::blas::detail::scal(ForwardIterator, ForwardIterator,
>>>> ScalarType)
>>>> >> [with
>>>> >>
>>>> ForwardIterator=thrust::detail::normal_iterator<thrust::device_ptr<PetscScalar>>,
>>>> >> ScalarType=std::complex<double>]"
>>>> >> (748): here
>>>> >> instantiation of "void cusp::blas::scal(Array &,
>>>> >> ScalarType) [with Array=cusp::array1d<PetscScalar,
>>>> >> cusp::device_memory>, ScalarType=std::complex<double>]"
>>>> >> veccusp.cu(1185): here
>>>> >>
>>>> >>
>>>> >>
>>>> /opt/apps/cuda/4.0/cuda/include/thrust/detail/device/cuda/detail/launch_closure.inl(51):
>>>> >> error: a value of type "int" cannot be assigned to an entity of type
>>>> >> "_ZNSt7complexIdE9_ComplexTE"
>>>> >>
>>>> >> "
>>>> >> However, I further realize simiar codes as
>>>> >> "
>>>> >> #include <thrust/version.h>
>>>> >> #include <cusp/version.h>
>>>> >> #include <iostream>
>>>> >> #include <cusp/blas.h>
>>>> >> #include <cusp/array1d.h>
>>>> >> #include <complex>
>>>> >>
>>>> >> int main(void)
>>>> >> {
>>>> >> cusp::array1d<std::complex<double>, cusp::host_memory> *x;
>>>> >>
>>>> >> x=new cusp::array1d<std::complex<double>,
>>>> cusp::host_memory>(2,0.0);
>>>> >>
>>>> >> std::complex<double> alpha(1,2.0);
>>>> >> cusp::blas::scal(*x,alpha);
>>>> >>
>>>> >> return 0;
>>>> >> }
>>>> >> "
>>>> >>
>>>> >> When I complied it using "nvcc gputest.cu -o gputest", I only meet
>>>> >> warning information as follows:
>>>> >> "
>>>> >> /opt/apps/cuda/4.0/cuda/bin/../include/cusp/detail/blas.inl(134):
>>>> >> warning: calling a __host__ function from a __host__ __device__
>>>> >> function is not allowed
>>>> >> detected during:
>>>> >> instantiation of "void
>>>> >> cusp::blas::detail::SCAL<T>::operator()(T2 &) [with
>>>> >> T=std::complex<double>, T2=std::complex<double>]"
>>>> >>
>>>> /opt/apps/cuda/4.0/cuda/bin/../include/thrust/detail/host/for_each.inl(37):
>>>> >> here
>>>> >> instantiation of "InputIterator
>>>> >> thrust::detail::host::for_each(InputIterator, InputIterator,
>>>> >> UnaryFunction) [with
>>>> >> InputIterator=thrust::detail::normal_iterator<std::complex<double>
>>>> *>,
>>>> >> UnaryFunction=cusp::blas::detail::SCAL<std::complex<double>>]"
>>>> >>
>>>> >>
>>>> /opt/apps/cuda/4.0/cuda/bin/../include/thrust/detail/dispatch/for_each.h(46):
>>>> >> here
>>>> >> instantiation of "InputIterator
>>>> >> thrust::detail::dispatch::for_each(InputIterator, InputIterator,
>>>> >> UnaryFunction, thrust::host_space_tag) [with
>>>> >> InputIterator=thrust::detail::normal_iterator<std::complex<double>
>>>> *>,
>>>> >> UnaryFunction=cusp::blas::detail::SCAL<std::complex<double>>]"
>>>> >>
>>>> /opt/apps/cuda/4.0/cuda/bin/../include/thrust/detail/for_each.inl(51):
>>>> >> here
>>>> >> instantiation of "InputIterator
>>>> >> thrust::detail::for_each(InputIterator, InputIterator, UnaryFunction)
>>>> >> [with
>>>> InputIterator=thrust::detail::normal_iterator<std::complex<double>
>>>> >> *>, UnaryFunction=cusp::blas::detail::SCAL<std::complex<double>>]"
>>>> >>
>>>> /opt/apps/cuda/4.0/cuda/bin/../include/thrust/detail/for_each.inl(67):
>>>> >> here
>>>> >> instantiation of "void thrust::for_each(InputIterator,
>>>> >> InputIterator, UnaryFunction) [with
>>>> >> InputIterator=thrust::detail::normal_iterator<std::complex<double>
>>>> *>,
>>>> >> UnaryFunction=cusp::blas::detail::SCAL<std::complex<double>>]"
>>>> >> (367): here
>>>> >> instantiation of "void
>>>> >> cusp::blas::detail::scal(ForwardIterator, ForwardIterator,
>>>> ScalarType)
>>>> >> [with
>>>> ForwardIterator=thrust::detail::normal_iterator<std::complex<double>
>>>> >> *>, ScalarType=std::complex<double>]"
>>>> >> (748): here
>>>> >> instantiation of "void cusp::blas::scal(Array &,
>>>> >> ScalarType) [with Array=cusp::array1d<std::complex<double>,
>>>> >> cusp::host_memory>, ScalarType=std::complex<double>]"
>>>> >> gputest.cu(25): here
>>>> >>
>>>> >> "
>>>> >> There are not errors like
>>>> >>
>>>> >>
>>>> "/opt/apps/cuda/4.0/cuda/include/thrust/detail/device/cuda/detail/launch_closure.inl(51):
>>>> >> error: a value of type "int" cannot be assigned to an entity of type
>>>> >> "_ZNSt7complexIdE9_ComplexTE" "
>>>> >>
>>>> >> Furthermore, the warning information is also different between
>>>> >> PETSc-dev and simple codes.
>>>> >>
>>>> >> Could you give me some suggestion for this errors? Thank you very
>>>> much.
>>>> >>
>>>> >
>>>> > The headers are complicated to get right. The whole point of what we
>>>> did is
>>>> > to give a way to use GPU
>>>> > simply through the existing PETSc linear algebra interface.
>>>> >
>>>> > Matt
>>>> >
>>>> >
>>>> >> Best,
>>>> >> Yujie
>>>> >>
>>>> >
>>>> >
>>>> >
>>>> > --
>>>> > What most experimenters take for granted before they begin their
>>>> > experiments is infinitely more interesting than any results to which
>>>> their
>>>> > experiments lead.
>>>> > -- Norbert Wiener
>>>> >
>>>>
>>>
>>>
>>>
>>> --
>>> What most experimenters take for granted before they begin their
>>> experiments is infinitely more interesting than any results to which their
>>> experiments lead.
>>> -- Norbert Wiener
>>>
>>
>>
>
>
> --
> What most experimenters take for granted before they begin their
> experiments is infinitely more interesting than any results to which their
> experiments lead.
> -- Norbert Wiener
>
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