From ffdcc8388386f3a5e1caec11c6472c021e0ed2d0 Mon Sep 17 00:00:00 2001
From: henryw7 <60555480+henryw7@users.noreply.github.com>
Date: Thu, 5 Dec 2024 17:45:15 -0800
Subject: [PATCH] Block unused PCM hessian code

---
 gpu4pyscf/solvent/hessian/pcm.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gpu4pyscf/solvent/hessian/pcm.py b/gpu4pyscf/solvent/hessian/pcm.py
index c6473fcf..cd22b710 100644
--- a/gpu4pyscf/solvent/hessian/pcm.py
+++ b/gpu4pyscf/solvent/hessian/pcm.py
@@ -83,6 +83,7 @@ def hess_nuc(pcmobj):
     return de
 
 def hess_qv(pcmobj, dm, verbose=None):
+    raise NotImplementedError("PCM analytical hessian is not tested")
     if not pcmobj._intermediates or 'q_sym' not in pcmobj._intermediates:
         pcmobj._get_vind(dm)
     gridslice    = pcmobj.surface['gslice_by_atom']