diff --git a/src/shogun/mathematics/linalgrefactor/BaseVector.h b/src/shogun/mathematics/linalgrefactor/BaseVector.h
index 1aaac3814fd..c5aa6889b57 100644
--- a/src/shogun/mathematics/linalgrefactor/BaseVector.h
+++ b/src/shogun/mathematics/linalgrefactor/BaseVector.h
@@ -12,7 +12,7 @@ template <class T>
 struct BaseVector
 {
     BaseVector(){}
-    const virtual bool onGPU() = 0;
+    virtual bool onGPU() = 0 ;
 
     index_t vlen;
 };
diff --git a/src/shogun/mathematics/linalgrefactor/CPUBackend.cpp b/src/shogun/mathematics/linalgrefactor/CPUBackend.cpp
index 19ebd475c39..e6b0b3ac29f 100644
--- a/src/shogun/mathematics/linalgrefactor/CPUBackend.cpp
+++ b/src/shogun/mathematics/linalgrefactor/CPUBackend.cpp
@@ -12,4 +12,5 @@ template <typename T> T CPUBackend::dot(const CPUVector<T> &a, const CPUVector<T
 }
 
 template int32_t CPUBackend::dot<int32_t>(const CPUVector<int32_t> &a, const CPUVector<int32_t> &b);
+template float32_t CPUBackend::dot<float32_t>(const CPUVector<float32_t> &a, const CPUVector<float32_t> &b);
 }
diff --git a/src/shogun/mathematics/linalgrefactor/CPUVector.cpp b/src/shogun/mathematics/linalgrefactor/CPUVector.cpp
index feab2a403ec..ac354bba024 100644
--- a/src/shogun/mathematics/linalgrefactor/CPUVector.cpp
+++ b/src/shogun/mathematics/linalgrefactor/CPUVector.cpp
@@ -15,5 +15,5 @@ CPUVector<T>::CPUVector(const CPUVector<T> &vector)
 : CPUptr(vector.CPUptr), vlen(vector.vlen) { }
 
 template struct CPUVector<int32_t>;
-
+template struct CPUVector<float32_t>;
 }
diff --git a/src/shogun/mathematics/linalgrefactor/CPUVector.h b/src/shogun/mathematics/linalgrefactor/CPUVector.h
index 1e102819a29..b7492753c92 100644
--- a/src/shogun/mathematics/linalgrefactor/CPUVector.h
+++ b/src/shogun/mathematics/linalgrefactor/CPUVector.h
@@ -20,7 +20,7 @@ struct CPUVector : public BaseVector<T>
 
     CPUVector(const CPUVector<T> &vector);
 
-    const bool onGPU() { return false; }
+    bool onGPU() { return false; }
 };
 
 }
diff --git a/src/shogun/mathematics/linalgrefactor/GPUArray.cpp b/src/shogun/mathematics/linalgrefactor/GPUArray.cpp
index bfaba73652c..2e9dc53a249 100644
--- a/src/shogun/mathematics/linalgrefactor/GPUArray.cpp
+++ b/src/shogun/mathematics/linalgrefactor/GPUArray.cpp
@@ -42,5 +42,5 @@ GPU_Vector<T>::GPUArray::GPUArray(const SGVector<T> &vector)
 #endif
 
 template struct GPU_Vector<int32_t>;
-
+template struct GPU_Vector<float32_t>;
 }
diff --git a/src/shogun/mathematics/linalgrefactor/GPUBackend.cpp b/src/shogun/mathematics/linalgrefactor/GPUBackend.cpp
index e02646e8a8a..2f0baacb19d 100644
--- a/src/shogun/mathematics/linalgrefactor/GPUBackend.cpp
+++ b/src/shogun/mathematics/linalgrefactor/GPUBackend.cpp
@@ -25,5 +25,5 @@ template <typename T> T GPUBackend::dot(const GPU_Vector<T> &a, const GPU_Vector
 }
 
 template int32_t GPUBackend::dot<int32_t>(const GPU_Vector<int32_t> &a, const GPU_Vector<int32_t> &b);
-
+template float32_t GPUBackend::dot<float32_t>(const GPU_Vector<float32_t> &a, const GPU_Vector<float32_t> &b);
 }
diff --git a/src/shogun/mathematics/linalgrefactor/GPU_Vector.cpp b/src/shogun/mathematics/linalgrefactor/GPU_Vector.cpp
index bf3e8cd298e..95bd0392658 100644
--- a/src/shogun/mathematics/linalgrefactor/GPU_Vector.cpp
+++ b/src/shogun/mathematics/linalgrefactor/GPU_Vector.cpp
@@ -59,5 +59,5 @@ GPU_Vector<T>& GPU_Vector<T>::operator=(const GPU_Vector<T> &other)
 template <class T> GPU_Vector<T>::~GPU_Vector() { }
 
 template struct GPU_Vector<int32_t>;
-
+template struct GPU_Vector<float32_t>;
 }
diff --git a/src/shogun/mathematics/linalgrefactor/GPU_Vector.h b/src/shogun/mathematics/linalgrefactor/GPU_Vector.h
index a6ffbf6d752..558375ccc46 100644
--- a/src/shogun/mathematics/linalgrefactor/GPU_Vector.h
+++ b/src/shogun/mathematics/linalgrefactor/GPU_Vector.h
@@ -32,7 +32,7 @@ struct GPU_Vector : public BaseVector<T>
 
     GPU_Vector<T>& operator=(const GPU_Vector<T> &other);
 
-    const bool onGPU() { return true; }
+    bool onGPU() { return true; }
 
 public:
     /** Vector length */
diff --git a/src/shogun/mathematics/linalgrefactor/linalgRefactor.cpp b/src/shogun/mathematics/linalgrefactor/linalgRefactor.cpp
index f8a07ff9121..9e2b91326b9 100644
--- a/src/shogun/mathematics/linalgrefactor/linalgRefactor.cpp
+++ b/src/shogun/mathematics/linalgrefactor/linalgRefactor.cpp
@@ -33,7 +33,7 @@ GPUBackend* Linalg::get_gpu_backend()
 }
 
 template <class T>
-T Linalg::dot(BaseVector<T> const * const a, BaseVector<T> const * const b)
+T Linalg::dot(BaseVector<T> *a, BaseVector<T> *b)
 {
     if (a->onGPU() && b->onGPU())
     {
@@ -72,6 +72,6 @@ bool Linalg::hasGPUBackend()
     return m_gpubackend != nullptr;
 }
 
-template int32_t Linalg::dot<int32_t>(BaseVector<int32_t> const * const a, BaseVector<int32_t> const * const b);
-
+template int32_t Linalg::dot<int32_t>(BaseVector<int32_t> *a, BaseVector<int32_t> *b);
+template float32_t Linalg::dot<float32_t>(BaseVector<float32_t> *a, BaseVector<float32_t> *b);
 }
diff --git a/src/shogun/mathematics/linalgrefactor/linalgRefactor.h b/src/shogun/mathematics/linalgrefactor/linalgRefactor.h
index 777f14d3490..b97512d6065 100644
--- a/src/shogun/mathematics/linalgrefactor/linalgRefactor.h
+++ b/src/shogun/mathematics/linalgrefactor/linalgRefactor.h
@@ -73,7 +73,7 @@ class Linalg
     GPUBackend* get_gpu_backend();
 
     template <class T>
-    T dot(BaseVector<T> const * const a, BaseVector<T> const * const b);
+    T dot(BaseVector<T> *a, BaseVector<T> *b);
 
     bool hasGPUBackend();