Hello!

I have just upgraded from 3.2.4 to Hg default for AVX support, and noticed that compiling with MKL no longer works (OSX 10.10, ICC 15.0.3). I don't actually need it anymore now that Eigen has AVX and has similar performance to MKL for my application ( ), so I'm only posting this in case it wasn't already known.

Code: Select all

#include <Eigen/Core>

int main() {}

Code: Select all

icc -DEIGEN_USE_MKL_ALL -g -std=c++11 -L/opt/intel/mkl/lib -I/opt/intel/mkl/include -I. -lpthread -fast test2.cpp -lm -mkl=sequential
In file included from ./Eigen/Core(298),
                 from test2.cpp(1):
./Eigen/src/Core/arch/AVX/MathFunctions.h(15): warning #47: incompatible redefinition of macro "_mm256_setr_m128" (declared at line 1558 of "/usr/bin/icc-15.0-base/compiler/include/immintrin.h")
  #define _mm256_setr_m128(lo, hi) \
          ^

In file included from ./Eigen/Core(416),
                 from test2.cpp(1):
./Eigen/src/Core/products/GeneralMatrixVector_MKL.h(51): error: constant "LhsStorageOrder" is not a type name
    general_matrix_vector_product<Index,LhsScalar,LhsStorageOrder,ConjugateLhs,RhsScalar,ConjugateRhs,BuiltIn> {};
                                                  ^

In file included from ./Eigen/Core(416),
                 from test2.cpp(1):
./Eigen/src/Core/products/GeneralMatrixVector_MKL.h(51): error: type name is not allowed
    general_matrix_vector_product<Index,LhsScalar,LhsStorageOrder,ConjugateLhs,RhsScalar,ConjugateRhs,BuiltIn> {};
                                                                               ^

In file included from ./Eigen/Core(416),
                 from test2.cpp(1):
./Eigen/src/Core/products/GeneralMatrixVector_MKL.h(51): error: constant "ConjugateRhs" is not a type name
    general_matrix_vector_product<Index,LhsScalar,LhsStorageOrder,ConjugateLhs,RhsScalar,ConjugateRhs,BuiltIn> {};
                                                                                         ^

In file included from ./Eigen/Core(416),
                 from test2.cpp(1):
./Eigen/src/Core/products/GeneralMatrixVector_MKL.h(51): error: constant "Eigen::BuiltIn" is not a type name
    general_matrix_vector_product<Index,LhsScalar,LhsStorageOrder,ConjugateLhs,RhsScalar,ConjugateRhs,BuiltIn> {};
                                                                                                      ^

In file included from ./Eigen/Core(416),
                 from test2.cpp(1):
./Eigen/src/Core/products/GeneralMatrixVector_MKL.h(51): error: too few arguments for class template "Eigen::internal::general_matrix_vector_product"
    general_matrix_vector_product<Index,LhsScalar,LhsStorageOrder,ConjugateLhs,RhsScalar,ConjugateRhs,BuiltIn> {};
                                                                                                             ^

In file included from ./Eigen/Core(416),
                 from test2.cpp(1):
./Eigen/src/Core/products/GeneralMatrixVector_MKL.h(51): error: not a class or struct name
    general_matrix_vector_product<Index,LhsScalar,LhsStorageOrder,ConjugateLhs,RhsScalar,ConjugateRhs,BuiltIn> {};
    ^

In file included from ./Eigen/Core(416),
                 from test2.cpp(1):
./Eigen/src/Core/products/GeneralMatrixVector_MKL.h(84): error: constant "Eigen::ColMajor" is not a type name
  EIGEN_MKL_GEMV_SPECIALIZE(double)
  ^

In file included from ./Eigen/Core(416),
                 from test2.cpp(1):
./Eigen/src/Core/products/GeneralMatrixVector_MKL.h(84): error: type name is not allowed
  EIGEN_MKL_GEMV_SPECIALIZE(double)
  ^

In file included from ./Eigen/Core(416),
                 from test2.cpp(1):
./Eigen/src/Core/products/GeneralMatrixVector_MKL.h(84): error: too few arguments for class template "Eigen::internal::general_matrix_vector_product"
  EIGEN_MKL_GEMV_SPECIALIZE(double)
  ^

In file included from ./Eigen/Core(416),
                 from test2.cpp(1):
./Eigen/src/Core/products/GeneralMatrixVector_MKL.h(85): error: constant "Eigen::ColMajor" is not a type name
  EIGEN_MKL_GEMV_SPECIALIZE(float)
  ^

In file included from ./Eigen/Core(416),
                 from test2.cpp(1):
./Eigen/src/Core/products/GeneralMatrixVector_MKL.h(85): error: type name is not allowed
  EIGEN_MKL_GEMV_SPECIALIZE(float)
  ^

In file included from ./Eigen/Core(416),
                 from test2.cpp(1):
./Eigen/src/Core/products/GeneralMatrixVector_MKL.h(85): error: too few arguments for class template "Eigen::internal::general_matrix_vector_product"
  EIGEN_MKL_GEMV_SPECIALIZE(float)
  ^

In file included from ./Eigen/Core(416),
                 from test2.cpp(1):
./Eigen/src/Core/products/GeneralMatrixVector_MKL.h(86): error: constant "Eigen::ColMajor" is not a type name
  EIGEN_MKL_GEMV_SPECIALIZE(dcomplex)
  ^

In file included from ./Eigen/Core(416),
                 from test2.cpp(1):
./Eigen/src/Core/products/GeneralMatrixVector_MKL.h(86): error: type name is not allowed
  EIGEN_MKL_GEMV_SPECIALIZE(dcomplex)
  ^

In file included from ./Eigen/Core(416),
                 from test2.cpp(1):
./Eigen/src/Core/products/GeneralMatrixVector_MKL.h(86): error: too few arguments for class template "Eigen::internal::general_matrix_vector_product"
  EIGEN_MKL_GEMV_SPECIALIZE(dcomplex)
  ^

In file included from ./Eigen/Core(416),
                 from test2.cpp(1):
./Eigen/src/Core/products/GeneralMatrixVector_MKL.h(87): error: constant "Eigen::ColMajor" is not a type name
  EIGEN_MKL_GEMV_SPECIALIZE(scomplex)
  ^

In file included from ./Eigen/Core(416),
                 from test2.cpp(1):
./Eigen/src/Core/products/GeneralMatrixVector_MKL.h(87): error: type name is not allowed
  EIGEN_MKL_GEMV_SPECIALIZE(scomplex)
  ^

In file included from ./Eigen/Core(416),
                 from test2.cpp(1):
./Eigen/src/Core/products/GeneralMatrixVector_MKL.h(87): error: too few arguments for class template "Eigen::internal::general_matrix_vector_product"
  EIGEN_MKL_GEMV_SPECIALIZE(scomplex)
  ^

In file included from ./Eigen/Core(426),
                 from test2.cpp(1):
./Eigen/src/Core/Assign_MKL.h(79): error: assign_impl is not a template
    : assign_impl<Derived1, Eigen::CwiseUnaryOp<UnaryOp, Derived2>,Traversal,Unrolling,BuiltIn>
      ^

In file included from ./Eigen/Core(426),
                 from test2.cpp(1):
./Eigen/src/Core/Assign_MKL.h(79): error: not a class or struct name
    : assign_impl<Derived1, Eigen::CwiseUnaryOp<UnaryOp, Derived2>,Traversal,Unrolling,BuiltIn>
      ^

In file included from ./Eigen/Core(426),
                 from test2.cpp(1):
./Eigen/src/Core/Assign_MKL.h(123): error: a template argument list is not allowed in a declaration of a primary template
  EIGEN_MKL_VML_SPECIALIZE_ASSIGN(DefaultTraversal,NoUnrolling)
  ^

In file included from ./Eigen/Core(426),
                 from test2.cpp(1):
./Eigen/src/Core/Assign_MKL.h(124): error: a template argument list is not allowed in a declaration of a primary template
  EIGEN_MKL_VML_SPECIALIZE_ASSIGN(DefaultTraversal,CompleteUnrolling)
  ^

In file included from ./Eigen/Core(426),
                 from test2.cpp(1):
./Eigen/src/Core/Assign_MKL.h(125): error: a template argument list is not allowed in a declaration of a primary template
  EIGEN_MKL_VML_SPECIALIZE_ASSIGN(DefaultTraversal,InnerUnrolling)
  ^

In file included from ./Eigen/Core(426),
                 from test2.cpp(1):
./Eigen/src/Core/Assign_MKL.h(126): error: a template argument list is not allowed in a declaration of a primary template
  EIGEN_MKL_VML_SPECIALIZE_ASSIGN(LinearTraversal,NoUnrolling)
  ^

In file included from ./Eigen/Core(426),
                 from test2.cpp(1):
./Eigen/src/Core/Assign_MKL.h(127): error: a template argument list is not allowed in a declaration of a primary template
  EIGEN_MKL_VML_SPECIALIZE_ASSIGN(LinearTraversal,CompleteUnrolling)
  ^

In file included from ./Eigen/Core(426),
                 from test2.cpp(1):
./Eigen/src/Core/Assign_MKL.h(128): error: a template argument list is not allowed in a declaration of a primary template
  EIGEN_MKL_VML_SPECIALIZE_ASSIGN(InnerVectorizedTraversal,NoUnrolling)
  ^

In file included from ./Eigen/Core(426),
                 from test2.cpp(1):
./Eigen/src/Core/Assign_MKL.h(129): error: a template argument list is not allowed in a declaration of a primary template
  EIGEN_MKL_VML_SPECIALIZE_ASSIGN(InnerVectorizedTraversal,CompleteUnrolling)
  ^

In file included from ./Eigen/Core(426),
                 from test2.cpp(1):
./Eigen/src/Core/Assign_MKL.h(130): error: a template argument list is not allowed in a declaration of a primary template
  EIGEN_MKL_VML_SPECIALIZE_ASSIGN(InnerVectorizedTraversal,InnerUnrolling)
  ^

In file included from ./Eigen/Core(426),
                 from test2.cpp(1):
./Eigen/src/Core/Assign_MKL.h(131): error: a template argument list is not allowed in a declaration of a primary template
  EIGEN_MKL_VML_SPECIALIZE_ASSIGN(LinearVectorizedTraversal,CompleteUnrolling)
  ^

In file included from ./Eigen/Core(426),
                 from test2.cpp(1):
./Eigen/src/Core/Assign_MKL.h(132): error: a template argument list is not allowed in a declaration of a primary template
  EIGEN_MKL_VML_SPECIALIZE_ASSIGN(LinearVectorizedTraversal,NoUnrolling)
  ^

In file included from ./Eigen/Core(426),
                 from test2.cpp(1):
./Eigen/src/Core/Assign_MKL.h(133): error: a template argument list is not allowed in a declaration of a primary template
  EIGEN_MKL_VML_SPECIALIZE_ASSIGN(SliceVectorizedTraversal,NoUnrolling)
  ^

compilation aborted for test2.cpp (code 2)
make: *** [icc] Error 2

Thanks!
Matthew

Thank you for the feddback, yes we are aware that in the devel branch MKL support is completely broken, but we'll fix it only when the internal changes will be stabilised.

Awesome thanks!