diff --git a/templates/accelerate/ptypy_i13_AuStar_farfield_pycuda.py b/templates/accelerate/ptypy_i13_AuStar_farfield_pycuda.py
index 865f5d9ce..635cd7a60 100644
--- a/templates/accelerate/ptypy_i13_AuStar_farfield_pycuda.py
+++ b/templates/accelerate/ptypy_i13_AuStar_farfield_pycuda.py
@@ -6,7 +6,7 @@
 from ptypy.core import Ptycho
 from ptypy import utils as u
 import ptypy
-ptypy.load_gpu_engines(arch="cuda")
+ptypy.load_gpu_engines(arch="pycuda")
 
 import tempfile
 tmpdir = tempfile.gettempdir()
diff --git a/templates/accelerate/ptypy_i13_AuStar_nearfield_pycuda.py b/templates/accelerate/ptypy_i13_AuStar_nearfield_pycuda.py
index 671116fa7..6a63853f8 100644
--- a/templates/accelerate/ptypy_i13_AuStar_nearfield_pycuda.py
+++ b/templates/accelerate/ptypy_i13_AuStar_nearfield_pycuda.py
@@ -6,7 +6,7 @@
 from ptypy.core import Ptycho
 from ptypy import utils as u
 import ptypy
-ptypy.load_gpu_engines(arch="cuda")
+ptypy.load_gpu_engines(arch="pycuda")
 
 import tempfile
 tmpdir = tempfile.gettempdir()
diff --git a/templates/accelerate/ptypy_id22ni_AuStar_focused_pycuda.py b/templates/accelerate/ptypy_id22ni_AuStar_focused_pycuda.py
index fb9c3920b..1d3a39b00 100644
--- a/templates/accelerate/ptypy_id22ni_AuStar_focused_pycuda.py
+++ b/templates/accelerate/ptypy_id22ni_AuStar_focused_pycuda.py
@@ -6,7 +6,7 @@
 from ptypy.core import Ptycho
 from ptypy import utils as u
 import ptypy
-ptypy.load_gpu_engines(arch="cuda")
+ptypy.load_gpu_engines(arch="pycuda")
 
 import numpy as np
 import tempfile
diff --git a/templates/accelerate/ptypy_laser_logo_focused_pycuda.py b/templates/accelerate/ptypy_laser_logo_focused_pycuda.py
index 9628bd970..3d0b44b71 100644
--- a/templates/accelerate/ptypy_laser_logo_focused_pycuda.py
+++ b/templates/accelerate/ptypy_laser_logo_focused_pycuda.py
@@ -7,7 +7,7 @@
 from ptypy import utils as u
 import ptypy.simulations as sim
 import ptypy
-ptypy.load_gpu_engines(arch="cuda")
+ptypy.load_gpu_engines(arch="pycuda")
 
 import pathlib
 import numpy as np
diff --git a/templates/accelerate/ptypy_minimal_prep_and_run_pycuda.py b/templates/accelerate/ptypy_minimal_prep_and_run_pycuda.py
index d28643f52..347768e5a 100644
--- a/templates/accelerate/ptypy_minimal_prep_and_run_pycuda.py
+++ b/templates/accelerate/ptypy_minimal_prep_and_run_pycuda.py
@@ -6,7 +6,7 @@
 from ptypy.core import Ptycho
 from ptypy import utils as u
 import ptypy
-ptypy.load_gpu_engines(arch="cuda")
+ptypy.load_gpu_engines(arch="pycuda")
 
 import tempfile
 tmpdir = tempfile.gettempdir()
diff --git a/templates/engines/pycuda/moonflower_DM_ML_pycuda.py b/templates/engines/pycuda/moonflower_DM_ML_pycuda.py
index ae70d903d..84050fdb4 100644
--- a/templates/engines/pycuda/moonflower_DM_ML_pycuda.py
+++ b/templates/engines/pycuda/moonflower_DM_ML_pycuda.py
@@ -6,7 +6,7 @@
 from ptypy.core import Ptycho
 from ptypy import utils as u
 import ptypy
-ptypy.load_gpu_engines(arch="cuda")
+ptypy.load_gpu_engines(arch="pycuda")
 
 import tempfile
 tmpdir = tempfile.gettempdir()
diff --git a/templates/engines/pycuda/moonflower_DM_pycuda.py b/templates/engines/pycuda/moonflower_DM_pycuda.py
index b4842bc30..0ba01ff38 100644
--- a/templates/engines/pycuda/moonflower_DM_pycuda.py
+++ b/templates/engines/pycuda/moonflower_DM_pycuda.py
@@ -6,7 +6,7 @@
 from ptypy.core import Ptycho
 from ptypy import utils as u
 import ptypy
-ptypy.load_gpu_engines(arch="cuda")
+ptypy.load_gpu_engines(arch="pycuda")
 
 import tempfile
 tmpdir = tempfile.gettempdir()
diff --git a/templates/engines/pycuda/moonflower_DM_pycuda_nostream.py b/templates/engines/pycuda/moonflower_DM_pycuda_nostream.py
index 3c2a702b1..3fe266276 100644
--- a/templates/engines/pycuda/moonflower_DM_pycuda_nostream.py
+++ b/templates/engines/pycuda/moonflower_DM_pycuda_nostream.py
@@ -6,7 +6,7 @@
 from ptypy.core import Ptycho
 from ptypy import utils as u
 import ptypy
-ptypy.load_gpu_engines(arch="cuda")
+ptypy.load_gpu_engines(arch="pycuda")
 
 import tempfile
 tmpdir = tempfile.gettempdir()
diff --git a/templates/engines/pycuda/moonflower_EPIE_ML_pycuda.py b/templates/engines/pycuda/moonflower_EPIE_ML_pycuda.py
index a0b1e8c9d..2269a161e 100644
--- a/templates/engines/pycuda/moonflower_EPIE_ML_pycuda.py
+++ b/templates/engines/pycuda/moonflower_EPIE_ML_pycuda.py
@@ -6,7 +6,7 @@
 from ptypy.core import Ptycho
 from ptypy import utils as u
 import ptypy
-ptypy.load_gpu_engines(arch="cuda")
+ptypy.load_gpu_engines(arch="pycuda")
 
 import tempfile
 tmpdir = tempfile.gettempdir()
diff --git a/templates/engines/pycuda/moonflower_EPIE_pycuda.py b/templates/engines/pycuda/moonflower_EPIE_pycuda.py
index e96ee91d2..aaf787018 100644
--- a/templates/engines/pycuda/moonflower_EPIE_pycuda.py
+++ b/templates/engines/pycuda/moonflower_EPIE_pycuda.py
@@ -6,7 +6,7 @@
 from ptypy.core import Ptycho
 from ptypy import utils as u
 import ptypy
-ptypy.load_gpu_engines(arch="cuda")
+ptypy.load_gpu_engines(arch="pycuda")
 
 import tempfile
 tmpdir = tempfile.gettempdir()
diff --git a/templates/engines/pycuda/moonflower_ML_ML_pycuda.py b/templates/engines/pycuda/moonflower_ML_ML_pycuda.py
index d506ec5ae..87b7a6dd4 100644
--- a/templates/engines/pycuda/moonflower_ML_ML_pycuda.py
+++ b/templates/engines/pycuda/moonflower_ML_ML_pycuda.py
@@ -7,7 +7,7 @@
 from ptypy.core import Ptycho
 from ptypy import utils as u
 import ptypy
-ptypy.load_gpu_engines(arch="cuda")
+ptypy.load_gpu_engines(arch="pycuda")
 
 import tempfile
 tmpdir = tempfile.gettempdir()
diff --git a/templates/engines/pycuda/moonflower_ML_pycuda.py b/templates/engines/pycuda/moonflower_ML_pycuda.py
index 4e3ce15f6..2938275f7 100644
--- a/templates/engines/pycuda/moonflower_ML_pycuda.py
+++ b/templates/engines/pycuda/moonflower_ML_pycuda.py
@@ -7,7 +7,7 @@
 from ptypy.core import Ptycho
 from ptypy import utils as u
 import ptypy
-ptypy.load_gpu_engines(arch="cuda")
+ptypy.load_gpu_engines(arch="pycuda")
 
 import tempfile
 tmpdir = tempfile.gettempdir()
diff --git a/templates/engines/pycuda/moonflower_RAAR_ML_pycuda.py b/templates/engines/pycuda/moonflower_RAAR_ML_pycuda.py
index 28e565f8a..39634dd12 100644
--- a/templates/engines/pycuda/moonflower_RAAR_ML_pycuda.py
+++ b/templates/engines/pycuda/moonflower_RAAR_ML_pycuda.py
@@ -6,7 +6,7 @@
 from ptypy.core import Ptycho
 from ptypy import utils as u
 import ptypy
-ptypy.load_gpu_engines(arch="cuda")
+ptypy.load_gpu_engines(arch="pycuda")
 
 import tempfile
 tmpdir = tempfile.gettempdir()
diff --git a/templates/engines/pycuda/moonflower_RAAR_pycuda.py b/templates/engines/pycuda/moonflower_RAAR_pycuda.py
index 52b9c5395..0575f23b1 100644
--- a/templates/engines/pycuda/moonflower_RAAR_pycuda.py
+++ b/templates/engines/pycuda/moonflower_RAAR_pycuda.py
@@ -6,7 +6,7 @@
 from ptypy.core import Ptycho
 from ptypy import utils as u
 import ptypy
-ptypy.load_gpu_engines(arch="cuda")
+ptypy.load_gpu_engines(arch="pycuda")
 
 import tempfile
 tmpdir = tempfile.gettempdir()
diff --git a/templates/engines/pycuda/moonflower_SDR_pycuda.py b/templates/engines/pycuda/moonflower_SDR_pycuda.py
index d76c7689f..68390804e 100644
--- a/templates/engines/pycuda/moonflower_SDR_pycuda.py
+++ b/templates/engines/pycuda/moonflower_SDR_pycuda.py
@@ -6,7 +6,7 @@
 from ptypy.core import Ptycho
 from ptypy import utils as u
 import ptypy
-ptypy.load_gpu_engines(arch="cuda")
+ptypy.load_gpu_engines(arch="pycuda")
 
 import tempfile
 tmpdir = tempfile.gettempdir()
diff --git a/templates/live_processing/moonflower_DM_delayed_pycuda.py b/templates/live_processing/moonflower_DM_delayed_pycuda.py
index ab2bcc419..29e9ac8fe 100644
--- a/templates/live_processing/moonflower_DM_delayed_pycuda.py
+++ b/templates/live_processing/moonflower_DM_delayed_pycuda.py
@@ -7,7 +7,7 @@
 from ptypy.core import Ptycho
 from ptypy import utils as u
 import ptypy
-ptypy.load_gpu_engines(arch="cuda")
+ptypy.load_gpu_engines(arch="pycuda")
 
 import tempfile
 tmpdir = tempfile.gettempdir()
diff --git a/templates/notebooks/moonflower_dm_pycuda.ipynb b/templates/notebooks/moonflower_dm_pycuda.ipynb
index 42937721d..8143ef4cd 100644
--- a/templates/notebooks/moonflower_dm_pycuda.ipynb
+++ b/templates/notebooks/moonflower_dm_pycuda.ipynb
@@ -12,11 +12,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "vscode": {
-     "languageId": "python"
-    }
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
     "import ptypy\n",
@@ -27,25 +23,17 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "vscode": {
-     "languageId": "python"
-    }
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
     "# Import pycuda engines (DM, RAAR)\n",
-    "ptypy.load_gpu_engines(\"cuda\")"
+    "ptypy.load_gpu_engines(\"pycuda\")"
    ]
   },
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "vscode": {
-     "languageId": "python"
-    }
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
     "# create parameter tree\n",
@@ -55,11 +43,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "vscode": {
-     "languageId": "python"
-    }
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
     "# set verbose level to interactive\n",
@@ -69,11 +53,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "vscode": {
-     "languageId": "python"
-    }
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
     "# Nr. of frames in a block\n",
@@ -83,11 +63,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "vscode": {
-     "languageId": "python"
-    }
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
     "# set home path and io settings (no files saved)\n",
@@ -101,11 +77,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "vscode": {
-     "languageId": "python"
-    }
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
     "# max 200 frames (128x128px) of diffraction data\n",
@@ -125,11 +97,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "vscode": {
-     "languageId": "python"
-    }
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
     "# difference map reconstrucion engine\n",
@@ -144,11 +112,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "vscode": {
-     "languageId": "python"
-    }
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
     "# prepare and run\n",
@@ -165,11 +129,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "vscode": {
-     "languageId": "python"
-    }
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
     "import ptypy.utils.plot_client as pc\n",
diff --git a/templates/notebooks/moonflower_epie_pycuda.ipynb b/templates/notebooks/moonflower_epie_pycuda.ipynb
index 290d424ef..66bc396f3 100644
--- a/templates/notebooks/moonflower_epie_pycuda.ipynb
+++ b/templates/notebooks/moonflower_epie_pycuda.ipynb
@@ -27,7 +27,7 @@
    "outputs": [],
    "source": [
     "# Import pycuda engines (DM, RAAR)\n",
-    "ptypy.load_gpu_engines(\"cuda\")"
+    "ptypy.load_gpu_engines(\"pycuda\")"
    ]
   },
   {
diff --git a/templates/notebooks/moonflower_ml_pycuda.ipynb b/templates/notebooks/moonflower_ml_pycuda.ipynb
index e5e9b3d52..f266f8c81 100644
--- a/templates/notebooks/moonflower_ml_pycuda.ipynb
+++ b/templates/notebooks/moonflower_ml_pycuda.ipynb
@@ -12,11 +12,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "vscode": {
-     "languageId": "python"
-    }
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
     "import ptypy\n",
@@ -27,25 +23,17 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "vscode": {
-     "languageId": "python"
-    }
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
     "# Import pycuda engines (DM, RAAR)\n",
-    "ptypy.load_gpu_engines(\"cuda\")"
+    "ptypy.load_gpu_engines(\"pycuda\")"
    ]
   },
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "vscode": {
-     "languageId": "python"
-    }
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
     "# create parameter tree\n",
@@ -55,11 +43,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "vscode": {
-     "languageId": "python"
-    }
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
     "# set verbose level to interactive\n",
@@ -69,11 +53,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "vscode": {
-     "languageId": "python"
-    }
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
     "# Nr. of frames in a block\n",
@@ -83,11 +63,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "vscode": {
-     "languageId": "python"
-    }
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
     "# set home path and io settings (no files saved)\n",
@@ -101,11 +77,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "vscode": {
-     "languageId": "python"
-    }
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
     "# max 200 frames (128x128px) of diffraction data\n",
@@ -125,11 +97,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "vscode": {
-     "languageId": "python"
-    }
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
     "# maximum likelihood reconstrucion engine\n",
@@ -149,11 +117,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "vscode": {
-     "languageId": "python"
-    }
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
     "# prepare and run\n",
@@ -170,11 +134,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "vscode": {
-     "languageId": "python"
-    }
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
     "import ptypy.utils.plot_client as pc\n",
diff --git a/templates/notebooks/moonflower_raar_pycuda.ipynb b/templates/notebooks/moonflower_raar_pycuda.ipynb
index 879428e86..e8bb338cc 100644
--- a/templates/notebooks/moonflower_raar_pycuda.ipynb
+++ b/templates/notebooks/moonflower_raar_pycuda.ipynb
@@ -27,7 +27,7 @@
    "outputs": [],
    "source": [
     "# Import pycuda engines (DM, RAAR)\n",
-    "ptypy.load_gpu_engines(\"cuda\")"
+    "ptypy.load_gpu_engines(\"pycuda\")"
    ]
   },
   {
diff --git a/templates/position_refinement/moonflower_posref_DM_pycuda.py b/templates/position_refinement/moonflower_posref_DM_pycuda.py
index 50ec2da37..dc2b288b3 100644
--- a/templates/position_refinement/moonflower_posref_DM_pycuda.py
+++ b/templates/position_refinement/moonflower_posref_DM_pycuda.py
@@ -7,7 +7,7 @@
 from ptypy.core import Ptycho
 from ptypy import utils as u
 import ptypy
-ptypy.load_gpu_engines(arch="cuda")
+ptypy.load_gpu_engines(arch="pycuda")
 
 import tempfile
 tmpdir = tempfile.gettempdir()
diff --git a/templates/position_refinement/moonflower_posref_EPIE_pycuda.py b/templates/position_refinement/moonflower_posref_EPIE_pycuda.py
index 39cc3b43c..d3d61919e 100644
--- a/templates/position_refinement/moonflower_posref_EPIE_pycuda.py
+++ b/templates/position_refinement/moonflower_posref_EPIE_pycuda.py
@@ -7,7 +7,7 @@
 from ptypy.core import Ptycho
 from ptypy import utils as u
 import ptypy
-ptypy.load_gpu_engines(arch="cuda")
+ptypy.load_gpu_engines(arch="pycuda")
 
 import tempfile
 tmpdir = tempfile.gettempdir()
diff --git a/templates/position_refinement/moonflower_posref_ML_pycuda.py b/templates/position_refinement/moonflower_posref_ML_pycuda.py
index b7bc7b756..0b0cf2cde 100644
--- a/templates/position_refinement/moonflower_posref_ML_pycuda.py
+++ b/templates/position_refinement/moonflower_posref_ML_pycuda.py
@@ -7,7 +7,7 @@
 from ptypy.core import Ptycho
 from ptypy import utils as u
 import ptypy
-ptypy.load_gpu_engines(arch="cuda")
+ptypy.load_gpu_engines(arch="pycuda")
 
 import tempfile
 tmpdir = tempfile.gettempdir()
diff --git a/templates/position_refinement/moonflower_posref_SDR_pycuda.py b/templates/position_refinement/moonflower_posref_SDR_pycuda.py
index e13cd58d1..880b2c54e 100644
--- a/templates/position_refinement/moonflower_posref_SDR_pycuda.py
+++ b/templates/position_refinement/moonflower_posref_SDR_pycuda.py
@@ -7,7 +7,7 @@
 from ptypy.core import Ptycho
 from ptypy import utils as u
 import ptypy
-ptypy.load_gpu_engines(arch="cuda")
+ptypy.load_gpu_engines(arch="pycuda")
 
 import tempfile
 tmpdir = tempfile.gettempdir()