---
name: "inputgen"
section: "1"
platform: "linux"
package: "pdb2pqr"
version: "3.6.1+dfsg-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/inputgen"
---

# inputgen(1)

manual page for inputgen 3.6.1+dfsg

## NAME

inputgen - manual page for inputgen 3.6.1+dfsg

## DESCRIPTION

usage: inputgen \[-h\] \[--asynch\] \[--split\] \[--potdx\]

-

  \[--method {para,auto,manual,async}\] \[--cfac CFAC\] \[--fadd FADD\] \[--space SPACE\] \[--gmemfac GMEMFAC\] \[--gmemceil GMEMCEIL\] \[--ofrac OFRAC\] \[--redfac REDFAC\] \[--istrng ISTRNG\] filename

PDB2PQR v3.6.1: biomolecular structure conversion software. inputgen: generating APBS input files since (at least) 2004

### positional arguments:

-

  filename

### options:

- **-h**, **--help**

  show this help message and exit

- **--asynch**

  perform an asynchronous parallel calculation. (default: False)

- **--split**

  split an existing parallel input file to multiple async input files. (default: False)

- **--potdx**

  create an input to compute an electrostatic potential map. (default: False)

- **--method** {para,auto,manual,async}

  force output file to write a specific APBS ELEC method. (default: None)

- **--cfac** CFAC

  factor by which to expand molecular dimensions to get coarse grid dimensions. (default: 1.7)

- **--fadd** FADD

  amount to add to molecular dimensions to get fine grid dimensions. (default: 20.0)

- **--space** SPACE

  desired fine mesh resolution (default: 0.5)

- **--gmemfac** GMEMFAC

  number of bytes per grid point required for sequential MG calculation (default: 200)

- **--gmemceil** GMEMCEIL

  max MB allowed for sequential MG calculation; adjust this to force the script to perform faster calculations (which require more parallelism) (default: 400)

- **--ofrac** OFRAC

  overlap factor between mesh partitions (parallel) (default: 0.1)

- **--redfac** REDFAC

  the maximum factor by which a domain dimension can be reduced during focusing (default: 0.25)

- **--istrng** ISTRNG

  Ionic strength (M); Na+ and Cl- ions will be used (default: None)