diff --git a/Dockerfile b/Dockerfile
index 4eff3f5..8227371 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -99,11 +99,11 @@ RUN git clone https://github.com/SeisSol/easi \
 
 RUN pip install numpy && docker-clean
 
-RUN git clone --recursive --depth 1 --single-branch --branch v1.0.1 https://github.com/SeisSol/SeisSol.git \
+RUN git clone --recursive --depth 1 --single-branch --branch v1.1.3 https://github.com/SeisSol/SeisSol.git \
     && cd SeisSol \
     && mkdir build_hsw && cd build_hsw \
     && export PATH=$PATH:/home/tools/bin \
-    && CC=mpicc CXX=mpicxx cmake .. -DCMAKE_PREFIX_PATH=/home/tools -DGEMM_TOOLS_LIST=LIBXSMM -DHOST_ARCH=hsw -DASAGI=on -DNETCDF=on -DORDER=4 -DCMAKE_Fortran_FLAGS="-ffast-math -funsafe-math-optimizations" \
+    && CC=mpicc CXX=mpicxx cmake .. -DCMAKE_PREFIX_PATH=/home/tools -DGEMM_TOOLS_LIST=LIBXSMM -DHOST_ARCH=hsw -DASAGI=on -DNETCDF=on -DORDER=4 -DDR_QUAD_RULE_OPTIONS=dunavant \
     && make -j$(nproc) \
     && cmake .. -DEQUATIONS=viscoelastic2 -DNUMBER_OF_MECHANISMS=3 \
     && make -j$(nproc) \
diff --git a/frontera.md b/frontera.md
index d80255f..32deaf5 100644
--- a/frontera.md
+++ b/frontera.md
@@ -2,6 +2,12 @@
 
 ## Setup
 Copy `singularity.def` to your home directory on frontera.
+
+Then get an interactive session on a compute node. For example for a 30 min session:
+```
+idev -m 30 -N 1 --tasks-per-node 2 -p development
+```
+
 Then execute: 
 
 ```
@@ -23,7 +29,7 @@ To run the TPV13 scenario, you should:
 cd seissol-training/tpv13
 mpirun singularity run ~/my-training.sif gmsh -3 tpv13_training.geo
 mpirun singularity run ~/my-training.sif pumgen -s msh2 tpv13_training.msh
-OMP_NUM_THREADS=56 mpirun singularity run ~/my-training.sif seissol parameters.par
+OMP_NUM_THREADS=28 mpirun -n 2 singularity run ~/my-training.sif seissol parameters.par
 ```
 
 ## Expected runtimes
@@ -32,13 +38,13 @@ On one node of Frontera:
 
 Scenario                | runtime
 ------------------------|---------
-Kaikoura LSW            | 15 min
-Kaikoura RS             | 11 min
+Kaikoura LSW            | 9 min
+Kaikoura RS             | 7 min
 Northridge elastic      | 3 min
 Northridge viscoelastic | 5 min
-Sulawesi LSW            | 13 min
-Sulawesi RS             | 16 min
-TPV13                   | 1 min
+Sulawesi LSW            | 6 min
+Sulawesi RS             | 6 min
+TPV13                   | 12 s
 
 ## Visualization
 
diff --git a/tpv13/tpv12_13_initial_stress.yaml b/tpv13/tpv12_13_initial_stress.yaml
index 678ee6a..77c517f 100644
--- a/tpv13/tpv12_13_initial_stress.yaml
+++ b/tpv13/tpv12_13_initial_stress.yaml
@@ -4,25 +4,25 @@
     s_xy: 0
     s_yz: 0
     s_xz: 0
-[s_xx, s_yy, s_zz]: !FunctionMap
-  map:
-    depth: return abs(z);
-    s_max_minus_Pf: return 9.8 * (2700.0 - 1000.0);
-  components:
-    # Upper region (includes fault)
-    - !AxisAlignedCuboidalDomainFilter
-      limits:
-        depth:          [0, 11951.15]
-        s_max_minus_Pf: [-.inf, .inf]
-      components: !FunctionMap
-        map:
-          # Round to two significant digits as in benchmark description
-          s_xx: return -0.01 * round(100.0 * (0.5 * (1.0 + 0.3496) * s_max_minus_Pf)) * depth;
-          s_yy: return -0.01 * round(100.0 *               (0.3496 * s_max_minus_Pf)) * depth;
-          s_zz: return -s_max_minus_Pf * depth;
-    # Lower region (excludes fault)
-    - !FunctionMap
-      map:
-        s_xx: return -s_max_minus_Pf * depth;
-        s_yy: return -s_max_minus_Pf * depth;
-        s_zz: return -s_max_minus_Pf * depth;
+[s_xx, s_yy, s_zz]: !LuaMap
+  returns: [s_xx, s_yy, s_zz]
+  function: |
+      function f (x)
+        depth = math.abs(x["z"])
+        s_max_minus_Pf = 9.8 * (2700.0 - 1000.0);
+        if (depth<=11951.15) then
+          -- math.floor(a+0.5) is round
+          s_xx =  -0.01 * math.floor(100.0 * (0.5 * (1.0 + 0.3496) * s_max_minus_Pf) + 0.5) * depth
+          s_yy =  -0.01 * math.floor(100.0 *               (0.3496 * s_max_minus_Pf) + 0.5) * depth
+          s_zz = -s_max_minus_Pf * depth
+        else
+          s_xx = -s_max_minus_Pf * depth
+          s_yy = s_xx
+          s_zz = s_xx
+        end
+        return {
+          s_xx = s_xx,
+          s_yy = s_yy,
+          s_zz = s_zz,
+        }
+      end