* @param src Source host (set by simgrid)
* @param dst Source host (set by simgrid)
*/
-static double smpi_cost_cb(SmpiOperation op, double size, sg4::Host* src, sg4::Host* dst)
+static double smpi_cost_cb(SmpiOperation op, size_t /*size*/, const sg4::Host* src, const sg4::Host* dst)
{
/* some dummy cost that depends on the operation and host */
static std::unordered_map<std::string, double> read_cost = {{"Tremblay", 1}, {"Jupiter", 2}};