Solver: Improve execution dir.

src/View/RunSolver/Window.py

@@ -101,7 +101,9 @@ class SolverLogWindow(ASubMainWindow, ListedSubWindow):
         else:
             self._workdir = os.path.join(
                 os.path.dirname(self._study.filename),
-                "0"
+                "_PAMHYR_",
+                self._study.name.replace(" ", "_"),
+                self._solver.name.replace(" ", "_"),
             )
             os.makedirs(self._workdir, exist_ok = True)