Vasp Manager Skill

VASP Manager Skill

This module defines the capabilities of the Manager Agent, the "Sysadmin" of the platform. Its primary role is to execute the jobs defined in the JobManifest on an HPC cluster (e.g., Slurm) and ensure they complete successfully.

Capabilities

1. Connection Management (connection.py)

• SSH Gateway/Bastion Support: Connects to the HPC cluster via a jump host using fabric.
• Persistence: Maintains a reliable connection for command execution.
• File Transfer: Handles uploading inputs and downloading logs.

2. Workflow Orchestration (workflow.py)

• State Machine: Manages the lifecycle of a calculation:
  1. Relaxation (Ionic optimization)
  2. Transition (Copy CONTCAR -> POSCAR)
  3. Static-SCF (Electronic optimization)
  4. Bands (Band structure calculation)
• Self-Correction: Automatically detects failures and attempts to fix them (e.g., switching algorithms on ZHEGV errors).

3. Monitoring & Intelligence (log_parser.py & ai_debugger.py)

• Convergence Watchdog: Detects slow convergence (many SCF steps with small dE).
• Error Detection: Identifies common VASP errors (ZHEGV, EDDDAV).
• AI Analysis: The AIDebugger uses Google Gemini to read tail logs (run.log, OUTCAR) and intelligently propose INCAR modifications to fix crashes.

4. External Tools (vaspkit_driver.py)

• VASPkit Integration: Wraps vaspkit commands on the remote cluster.
• K-Path Generation: Automates the creation of KPOINTS for Band Structure (VASPkit Task 303/302).
• Band Extraction: Extracts BAND.dat and KLABELS for plotting (VASPkit Task 211).

5. Service Daemon (daemon.py)

• Continuous Operation: Runs as a persistent service on the cloud VM.
• Queue Sync: Automatically syncs new job folders from the local queue to the remote cluster.
• Job Triggering: Initiates the workflow for new jobs.

Integration

• Input: Directory structure created by the Translator.
• Output: Completed VASP calculations on the HPC cluster (WAVECAR, CHGCAR, XML).

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