Add TODOs for sparse solvers

Author: jakubbober

fdm-devito-notebooks/04_advec/advec.ipynb

@@ -2388,6 +2388,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
+    "# TODO: IMPLEMENT THIS IN DEVITO\n",
     "import numpy as np\n",
     "\n",
     "def solver(eps, Nx, method='centered'):\n",

fdm-devito-notebooks/04_advec/src-advec/advec1D.py

@@ -183,6 +183,7 @@ def plot(u, x, t, n):
     plt.axis([0, L, -0.75, 1.1])
     plt.show()
 
+
 def run(scheme='UP', case='gaussian', C=1, dt=0.01):
     """General admin routine for explicit and implicit solvers."""
 
@@ -274,6 +275,8 @@ def plot(u, x, t, n):
         os.system(cmd)
     print('Integral of u:', integral.max(), integral.min())
 
+
+# TODO: IMPLEMENT THIS IN DEVITO
 def solver_theta(I, v, L, dt, C, T, theta=0.5, user_action=None, FE=False):
     """
     Full solver for the model problem using the theta-rule