// Create vector of the specified size.
static boost::shared_ptr<vector>
create_vector(size_t size, const params &prm)
{
precondition(!prm.context().empty(), "Empty VexCL context!");
return boost::make_shared<vector>(prm.context(), size);
}
// Copy vector from builtin backend.
static boost::shared_ptr<vector>
copy_vector(typename builtin<real>::vector const &x, const params &prm)
{
precondition(!prm.context().empty(), "Empty VexCL context!");
return boost::make_shared<vector>(prm.context(), x);
}
// Copy matrix from builtin backend.
static boost::shared_ptr<matrix>
copy_matrix(boost::shared_ptr< typename builtin<real>::matrix > A, const params &prm)
{
precondition(!prm.context().empty(), "Empty VexCL context!");
const typename builtin<real>::matrix &a = *A;
BOOST_AUTO(Aptr, a.ptr_data());
BOOST_AUTO(Acol, a.col_data());
BOOST_AUTO(Aval, a.val_data());
return boost::make_shared<matrix>(prm.context(), rows(*A), cols(*A), Aptr, Acol, Aval);
}
lemon_interface(const params &p) {
state_ = ::ParseAlloc(&pooled::tracked_byte_alloc);
if (p.trace()) {
#if NERVE_TRACE_PARSER
::ParseTrace(stdout, detail::parse_trace_prefix);
#endif
}
context_ = p.context();
}
scatter(size_t size, const std::vector<ptrdiff_t> &I, const params &prm)
: S(prm.context(), size, std::vector<size_t>(I.begin(), I.end()))
, tmp(I.size())
{ }
gather(size_t src_size, const std::vector<ptrdiff_t> &I, const params &prm)
: G(prm.context(), src_size, std::vector<size_t>(I.begin(), I.end())) { }