# module `concrete.compiler.compilation_options`
CompilationOptions.
---
## class `CompilationOptions`
CompilationOptions holds different flags and options of the compilation process.
It controls different parallelization flags, diagnostic verification, and also the name of entrypoint function.
### method `__init__`
```python
__init__(compilation_options: CompilationOptions)
```
Wrap the native Cpp object.
**Args:**
- `compilation_options` (_CompilationOptions): object to wrap
**Raises:**
- `TypeError`: if compilation_options is not of type _CompilationOptions
---
### method `add_composition`
```python
add_composition(from_func: str, from_pos: int, to_func: str, to_pos: int)
```
Adds a composition rule.
**Args:**
- `from_func` (str): the name of the circuit the output comes from.
- `from_pos` (int): the return position of the output.
- `to_func` (str): the name of the circuit the input targets.
- `to_pos` (int): the argument position of the input.
**Raises:**
- `TypeError`: if the inputs do not have the proper type.
---
### method `force_encoding`
```python
force_encoding(encoding: Encoding)
```
Force the compiler to use a specific encoding.
**Args:**
- `encoding` (Encoding): the encoding to force the compiler to use
**Raises:**
- `TypeError`: if encoding is not of type Encoding
---
### method `new`
```python
new(backend=) → CompilationOptions
```
Build a CompilationOptions.
**Args:**
- `backend` (_Backend): backend to use.
**Raises:**
- `TypeError`: if function_name is not an str
**Returns:**
CompilationOptions
---
### method `set_all_v0_parameter`
```python
set_all_v0_parameter(
glwe_dim: int,
log_poly_size: int,
n_small: int,
br_level: int,
br_log_base: int,
ks_level: int,
ks_log_base: int,
crt_decomp: List[int],
cbs_level: int,
cbs_log_base: int,
pks_level: int,
pks_log_base: int,
pks_input_lwe_dim: int,
pks_output_poly_size: int
)
```
Set all the V0 parameters.
**Args:**
- `glwe_dim` (int): GLWE dimension
- `log_poly_size` (int): log of polynomial size
- `n_small` (int): n
- `br_level` (int): bootstrap level
- `br_log_base` (int): bootstrap base log
- `ks_level` (int): keyswitch level
- `ks_log_base` (int): keyswitch base log
- `crt_decomp` (List[int]): CRT decomposition vector
- `cbs_level` (int): circuit bootstrap level
- `cbs_log_base` (int): circuit bootstrap base log
- `pks_level` (int): packing keyswitch level
- `pks_log_base` (int): packing keyswitch base log
- `pks_input_lwe_dim` (int): packing keyswitch input LWE dimension
- `pks_output_poly_size` (int): packing keyswitch output polynomial size
**Raises:**
- `TypeError`: if parameters are not of type int
---
### method `set_auto_parallelize`
```python
set_auto_parallelize(auto_parallelize: bool)
```
Set option for auto parallelization.
**Args:**
- `auto_parallelize` (bool): whether to turn it on or off
**Raises:**
- `TypeError`: if the value to set is not boolean
---
### method `set_batch_tfhe_ops`
```python
set_batch_tfhe_ops(batch_tfhe_ops: bool)
```
Set flag that triggers the batching of scalar TFHE operations.
**Args:**
- `batch_tfhe_ops` (bool): whether to batch tfhe ops.
**Raises:**
- `TypeError`: if the value to set is not bool
---
### method `set_composable`
```python
set_composable(composable: bool)
```
Set composable flag.
**Args:**
- `composable` (bool): the composable flag.
**Raises:**
- `TypeError`: if the inputs do not have the proper type.
---
### method `set_compress_evaluation_keys`
```python
set_compress_evaluation_keys(compress_evaluation_keys: bool)
```
Set option for compression of evaluation keys.
**Args:**
- `compress_evaluation_keys` (bool): whether to turn it on or off
**Raises:**
- `TypeError`: if the value to set is not boolean
---
### method `set_compress_input_ciphertexts`
```python
set_compress_input_ciphertexts(compress_input_ciphertexts: bool)
```
Set option for compression of input ciphertexts.
**Args:**
- `compress_input_ciphertexts` (bool): whether to turn it on or off
**Raises:**
- `TypeError`: if the value to set is not boolean
---
### method `set_dataflow_parallelize`
```python
set_dataflow_parallelize(dataflow_parallelize: bool)
```
Set option for dataflow parallelization.
**Args:**
- `dataflow_parallelize` (bool): whether to turn it on or off
**Raises:**
- `TypeError`: if the value to set is not boolean
---
### method `set_display_optimizer_choice`
```python
set_display_optimizer_choice(display: bool)
```
Set display flag of optimizer choices.
**Args:**
- `display` (bool): if true the compiler display optimizer choices
**Raises:**
- `TypeError`: if the value is not a bool
---
### method `set_emit_gpu_ops`
```python
set_emit_gpu_ops(emit_gpu_ops: bool)
```
Set flag that allows gpu ops to be emitted.
**Args:**
- `emit_gpu_ops` (bool): whether to emit gpu ops.
**Raises:**
- `TypeError`: if the value to set is not bool
---
### method `set_enable_overflow_detection_in_simulation`
```python
set_enable_overflow_detection_in_simulation(enable_overflow_detection: bool)
```
Enable or disable overflow detection during simulation.
**Args:**
- `enable_overflow_detection` (bool): flag to enable or disable overflow detection
**Raises:**
- `TypeError`: if the value to set is not bool
---
### method `set_enable_tlu_fusing`
```python
set_enable_tlu_fusing(enable_tlu_fusing: bool)
```
Enable or disable tlu fusing.
**Args:**
- `enable_tlu_fusing` (bool): flag to enable or disable tlu fusing
**Raises:**
- `TypeError`: if the value to set is not bool
---
### method `set_funcname`
```python
set_funcname(funcname: str)
```
Set entrypoint function name.
**Args:**
- `funcname` (str): name of the entrypoint function
**Raises:**
- `TypeError`: if the value to set is not str
---
### method `set_global_p_error`
```python
set_global_p_error(global_p_error: float)
```
Set global error probability for the full circuit.
**Args:**
- `global_p_error` (float): probability of error for the full circuit
**Raises:**
- `TypeError`: if the value to set is not float
- `ValueError`: if the value to set is not in interval ]0; 1]
---
### method `set_loop_parallelize`
```python
set_loop_parallelize(loop_parallelize: bool)
```
Set option for loop parallelization.
**Args:**
- `loop_parallelize` (bool): whether to turn it on or off
**Raises:**
- `TypeError`: if the value to set is not boolean
---
### method `set_optimize_concrete`
```python
set_optimize_concrete(optimize: bool)
```
Set flag to enable/disable optimization of concrete intermediate representation.
**Args:**
- `optimize` (bool): whether to turn it on or off
**Raises:**
- `TypeError`: if the value to set is not boolean
---
### method `set_optimizer_multi_parameter_strategy`
```python
set_optimizer_multi_parameter_strategy(
strategy: OptimizerMultiParameterStrategy
)
```
Set the strategy of the optimizer for multi-parameter.
**Args:**
- `strategy` (OptimizerMultiParameterStrategy): Use the specified optmizer multi-parameter strategy.
**Raises:**
- `TypeError`: if the value is not a OptimizerMultiParameterStrategy
---
### method `set_optimizer_strategy`
```python
set_optimizer_strategy(strategy: OptimizerStrategy)
```
Set the strategy of the optimizer.
**Args:**
- `strategy` (OptimizerStrategy): Use the specified optmizer strategy.
**Raises:**
- `TypeError`: if the value is not an OptimizerStrategy
---
### method `set_p_error`
```python
set_p_error(p_error: float)
```
Set error probability for shared by each pbs.
**Args:**
- `p_error` (float): probability of error for each lut
**Raises:**
- `TypeError`: if the value to set is not float
- `ValueError`: if the value to set is not in interval ]0; 1]
---
### method `set_print_tlu_fusing`
```python
set_print_tlu_fusing(print_tlu_fusing: bool)
```
Enable or disable printing tlu fusing.
**Args:**
- `print_tlu_fusing` (bool): flag to enable or disable printing tlu fusing
**Raises:**
- `TypeError`: if the value to set is not bool
---
### method `set_security_level`
```python
set_security_level(security_level: int)
```
Set security level.
**Args:**
- `security_level` (int): the target number of bits of security to compile the circuit
**Raises:**
- `TypeError`: if the value to set is not int
- `ValueError`: if the value to set is not in interval ]0; 1]
---
### method `set_v0_parameter`
```python
set_v0_parameter(
glwe_dim: int,
log_poly_size: int,
n_small: int,
br_level: int,
br_log_base: int,
ks_level: int,
ks_log_base: int
)
```
Set the basic V0 parameters.
**Args:**
- `glwe_dim` (int): GLWE dimension
- `log_poly_size` (int): log of polynomial size
- `n_small` (int): n
- `br_level` (int): bootstrap level
- `br_log_base` (int): bootstrap base log
- `ks_level` (int): keyswitch level
- `ks_log_base` (int): keyswitch base log
**Raises:**
- `TypeError`: if parameters are not of type int
---
### method `set_verify_diagnostics`
```python
set_verify_diagnostics(verify_diagnostics: bool)
```
Set option for diagnostics verification.
**Args:**
- `verify_diagnostics` (bool): whether to turn it on or off
**Raises:**
- `TypeError`: if the value to set is not boolean
---
### method `simulation`
```python
simulation(simulate: bool)
```
Enable or disable simulation.
**Args:**
- `simulate` (bool): flag to enable or disable simulation
**Raises:**
- `TypeError`: if the value to set is not bool