void flip_dims(cuv::tensor<float,cuv::dev_memory_space>& dst, const cuv::tensor<float,cuv::dev_memory_space>& src, const cuv::extent_gen<D>& pattern) {
assert(D == dst.ndim());
bool p[D];
for (int i = 0; i < D; ++i)
{
p[i] = pattern.ranges_[i].finish();
}
flip_dims2(dst,src, p);
}
void save(Archive& ar, const cuv::tensor<V,MS, ML>& t, const unsigned int version){
ar << t.info().host_shape
<< t.info().host_stride;
ar << t.mem();
if(t.ndim()>0 && t.mem()){
long int i = (long int)t.ptr() - (long int)t.mem()->ptr();
ar << i;
}
}