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Revert "adding new notebook for using fairchem models with NEBs witho…
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…ut CatTSunami enumeration (#764)"

This reverts commit 5743a59.
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misko committed Jul 19, 2024
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Original file line number Diff line number Diff line change
Expand Up @@ -4,14 +4,14 @@ jupytext:
extension: .md
format_name: myst
format_version: 0.13
jupytext_version: 1.16.3
jupytext_version: 1.16.1
kernelspec:
display_name: Python 3 (ipykernel)
language: python
name: python3
---

# CatTSunami Tutorial
# CatTSunami tutorial

```{code-cell} ipython3
---
Expand All @@ -31,17 +31,20 @@ import matplotlib.pyplot as plt
from fairchem.applications.cattsunami.core.autoframe import AutoFrameDissociation
from fairchem.applications.cattsunami.core import OCPNEB
from ase.io import read
#Optional
from IPython.display import Image
from x3dase.x3d import X3D
#Set random seed
# Optional
# from x3dase.x3d import X3D
# Set random seed
import numpy as np
np.random.seed(22)
```

## Do enumerations in an AdsorbML style
## Do enumerations in an AdsorbML style for CH dissociation on Ru (001)

To start, we generate placements for the reactant and product species on the surface. We utilize the random placement approach which was developed for AdsorbML, and use an OCP model to relax our placements on the surface. These placements and their ML-determined energies are used as input to the CatTSunami automatic NEB frame generation approach.


```{code-cell} ipython3
---
Expand All @@ -51,31 +54,16 @@ tags: ["skip-execution"]
reaction = Reaction(reaction_str_from_db="*CH -> *C + *H",
reaction_db_path=DISSOCIATION_REACTION_DB_PATH,
adsorbate_db_path = ADSORBATE_PKL_PATH)
```
```{code-cell} ipython3
---
tags: ["skip-execution"]
---
# Instantiate our adsorbate class for the reactant and product
reactant = Adsorbate(adsorbate_id_from_db=reaction.reactant1_idx, adsorbate_db_path=ADSORBATE_PKL_PATH)
product1 = Adsorbate(adsorbate_id_from_db=reaction.product1_idx, adsorbate_db_path=ADSORBATE_PKL_PATH)
product2 = Adsorbate(adsorbate_id_from_db=reaction.product2_idx, adsorbate_db_path=ADSORBATE_PKL_PATH)
```
```{code-cell} ipython3
---
tags: ["skip-execution"]
---
# Grab the bulk and cut the slab we are interested in
bulk = Bulk(bulk_src_id_from_db="mp-33", bulk_db_path=BULK_PKL_PATH)
slab = Slab.from_bulk_get_specific_millers(bulk = bulk, specific_millers=(0,0,1))
```
```{code-cell} ipython3
---
tags: ["skip-execution"]
---
# Perform site enumeration
# For AdsorbML num_sites = 100, but we use 5 here for brevity. This should be increased for practical use.
reactant_configs = AdsorbateSlabConfig(slab = slab[0], adsorbate = reactant,
Expand All @@ -101,6 +89,16 @@ cpu = True
calc = OCPCalculator(checkpoint_path = checkpoint_path, cpu = cpu)
```

### Run ML local relaxations:

There are 2 options for how to do this.
1. Using `OCPCalculator` as the calculator within the ASE framework
2. By writing objects to lmdb and relaxing them using `main.py` in the ocp repo

(1) is really only adequate for small stuff and it is what I will show here, but if you plan to run many relaxations, you should definitely use (2). More details about writing lmdbs has been provided [here](https://github.com/Open-Catalyst-Project/ocp/blob/main/tutorials/lmdb_dataset_creation.ipynb) - follow the IS2RS/IS2RE instructions. And more information about running relaxations once the lmdb has been written is [here](https://github.com/Open-Catalyst-Project/ocp/blob/main/TRAIN.md#initial-structure-to-relaxed-structure-is2rs).

You need to provide the calculator with a path to a model checkpoint file. That can be downloaded [here](../core/model_checkpoints)

```{code-cell} ipython3
---
tags: ["skip-execution"]
Expand All @@ -112,25 +110,15 @@ for config in reactant_configs:
opt = BFGS(config)
opt.run(fmax = 0.05, steps=200)
reactant_energies.append(config.get_potential_energy())
```
```{code-cell} ipython3
---
tags: ["skip-execution"]
---
# Relax the product systems
product1_energies = []
for config in product1_configs:
config.calc = calc
opt = BFGS(config)
opt.run(fmax = 0.05, steps=200)
product1_energies.append(config.get_potential_energy())
```
```{code-cell} ipython3
---
tags: ["skip-execution"]
---
product2_energies = []
for config in product2_configs:
config.calc = calc
Expand All @@ -140,13 +128,8 @@ for config in product2_configs:
```

## Enumerate NEBs

```{code-cell} ipython3
---
tags: ["skip-execution"]
---
Image(filename="dissociation_scheme.png")
```
Here we use the class we created to handle automatic generation of NEB frames to create frames using the structures we just relaxed as input.
![dissociation_scheme](https://github.com/FAIR-Chem/fairchem/blob/main/src/fairchem/applications/cattsunami/tutorial/dissociation_scheme.png)

```{code-cell} ipython3
---
Expand All @@ -163,12 +146,7 @@ af = AutoFrameDissociation(
r_product2_max=3, #r3 in the above fig
r_product2_min=1, #r2 in the above fig
)
```
```{code-cell} ipython3
---
tags: ["skip-execution"]
---
nframes = 10
frame_sets, mapping_idxs = af.get_neb_frames(calc,
n_frames = nframes,
Expand All @@ -178,6 +156,7 @@ frame_sets, mapping_idxs = af.get_neb_frames(calc,
```

## Run NEBs
Here we use the custom child class we created to run NEB relaxations using ML. The class we created allows the frame relaxations to be batched, improving efficiency.

```{code-cell} ipython3
---
Expand Down Expand Up @@ -210,7 +189,7 @@ tags: ["skip-execution"]
# conv = optimizer.run(fmax=fmax, steps=300)
# if conv:
# converged_idxs.append(idx)
# print(converged_idxs)
```

Expand Down Expand Up @@ -238,13 +217,14 @@ if conv:
conv = optimizer.run(fmax=fmax, steps=300)
```

## Visualize the results
## (Optional) Visualize the results

```{code-cell} ipython3
---
tags: ["skip-execution"]
---
optimized_neb = read(f"ch_dissoc_on_Ru_{converged_idxs[0]}.traj", ":")[-1*nframes:]
idx_of_interest = 0
optimized_neb = read(f"n2_dissoc_on_Ru_{idx_of_interest}.traj", ":")[-1*nframes:]
```

```{code-cell} ipython3
Expand All @@ -255,12 +235,7 @@ es = []
for frame in optimized_neb:
frame.set_calculator(calc)
es.append(frame.get_potential_energy())
```
```{code-cell} ipython3
---
tags: ["skip-execution"]
---
# Plot the reaction coordinate
es = [e - es[0] for e in es]
Expand Down
162 changes: 0 additions & 162 deletions docs/tutorials/fairchem_models_for_nebs.md

This file was deleted.

Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,7 @@
"metadata": {},
"outputs": [],
"source": [
"from faichem.core.common.relaxation.ase_utils import OCPCalculator\n",
"from ocpmodels.common.relaxation.ase_utils import OCPCalculator\n",
"import ase.io\n",
"from ase.optimize import BFGS\n",
"\n",
Expand Down
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