Revit 2016 Dual-Installation Calculator
Calculate system requirements and compatibility for running two Revit 2016 instances on a single machine
Compatibility Score
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Recommended RAM Allocation
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CPU Utilization Estimate
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Storage Performance Impact
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GPU Memory Requirement
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System Stability Rating
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Comprehensive Guide: Running Two Revit 2016 Instances on a Single Computer
Running two instances of Autodesk Revit 2016 on a single machine is a common requirement for professionals who need to work on multiple projects simultaneously or test different configurations. However, this setup presents unique technical challenges that require careful consideration of hardware resources, software configurations, and performance optimization techniques.
System Requirements Analysis
The official system requirements for Revit 2016 specify minimum configurations, but running two instances simultaneously demands significantly more resources. Here’s a detailed breakdown:
| Component | Single Instance | Dual Instance (Recommended) | Dual Instance (Optimal) |
|---|---|---|---|
| CPU Cores | 2+ cores | 6+ cores | 8+ cores (12+ for large projects) |
| RAM | 8GB | 16GB | 32GB+ |
| Storage | 5GB free | 20GB+ free (SSD) | 50GB+ free (NVMe) |
| GPU Memory | 1GB | 4GB | 8GB+ |
| Display Resolution | 1280×1024 | 1920×1080 | 2560×1440+ (multi-monitor) |
Technical Implementation Methods
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Standard Installation with Multiple Sessions
- Revit 2016 supports multiple instances by default when launched separately
- Each instance runs as a separate process in Windows Task Manager
- Resource allocation is managed automatically by Windows
- Potential for performance degradation if system resources are insufficient
-
Virtual Machine Approach
- Run one instance natively and second in a VM (VMware Workstation, Hyper-V)
- Requires additional overhead for the VM (typically 1-2GB RAM + 1-2 CPU cores)
- Better isolation between instances but with performance penalty
- Ideal for testing different configurations without affecting main system
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Windows Sandbox (Windows 10/11 Pro)
- Lightweight virtualization for running second instance
- Automatically resets when closed (good for testing)
- Limited to 1GB RAM by default (can be increased via configuration)
- Not suitable for production work due to temporary nature
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Remote Desktop Services
- Run one instance locally and connect to second via RDP
- Requires Windows Pro/Enterprise for multiple RDP sessions
- Network latency may affect performance
- Good for collaborative work scenarios
Performance Optimization Techniques
To maximize performance when running two Revit 2016 instances simultaneously:
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Resource Allocation:
- Use Windows Resource Monitor to track CPU, RAM, and disk usage
- Set process priorities (right-click in Task Manager → Set priority)
- Consider using Process Lasso for automatic process management
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Graphics Configuration:
- Enable Hardware Acceleration in Revit options
- Adjust graphics settings to balance quality and performance
- For NVIDIA cards, configure Revit-specific settings in NVIDIA Control Panel
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Project Management:
- Use worksets to divide large projects
- Regularly purge unused elements
- Consider linking files instead of binding when possible
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System Tweaks:
- Disable unnecessary startup programs
- Increase system page file size (1.5× physical RAM)
- Use SSD/NVMe for Revit installation and project files
- Disable Windows visual effects for better performance
Common Challenges and Solutions
| Challenge | Symptoms | Solution | Prevention |
|---|---|---|---|
| Insufficient RAM | Frequent crashes, slow performance, “out of memory” errors |
|
Monitor RAM usage before launching second instance |
| CPU Bottleneck | High CPU usage (90%+), laggy interface, slow calculations |
|
Check CPU requirements before dual-instance setup |
| GPU Limitations | Graphical glitches, slow navigation, view corruption |
|
Verify GPU compatibility with Revit 2016 |
| Storage I/O Bottleneck | Slow file operations, delays when saving/opening |
|
Use fast storage for active projects |
| Software Conflicts | Unexpected crashes, feature malfunctions |
|
Test configurations in non-production environment |
Legal and Licensing Considerations
Before setting up dual instances of Revit 2016, it’s crucial to understand the licensing implications:
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Autodesk License Terms:
- Standard licenses typically allow installation on one primary machine
- Running two instances simultaneously may violate EULA unless you have:
- Network license with available seats
- Multiple standalone licenses
- Subscription with multi-user access
- Virtual machine usage may have additional restrictions
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Compliance Recommendations:
- Review your specific license agreement
- Contact Autodesk support for clarification if unsure
- Consider upgrading to newer Revit versions with better multi-instance support
- Use Autodesk’s official virtualization guidelines if deploying in VMs
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Audit Preparation:
- Maintain records of license purchases
- Document justification for dual-instance usage
- Be prepared to demonstrate compliance during software audits
Alternative Solutions to Consider
If running two Revit 2016 instances proves problematic, consider these alternatives:
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Revit Server Collaboration:
- Allows multiple users to work on centralized models
- Reduces need for local dual instances
- Requires server infrastructure
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Cloud Workstations:
- Services like Autodesk BIM 360 provide cloud-based Revit access
- Can run multiple sessions from different devices
- Subscription-based pricing model
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Secondary Workstation:
- Dedicated second machine for additional Revit instance
- Can be lower-spec for viewing/light editing
- Network sharing of project files
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Revit Viewer:
- Use free Revit Viewer for second instance when only viewing is needed
- Significantly lower resource requirements
- Limited to view-only functionality
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Model Division:
- Divide large projects into smaller linked files
- Work on different files in single instance
- Requires careful coordination
Step-by-Step Implementation Guide
For those proceeding with dual Revit 2016 instances on a single machine, follow this implementation process:
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System Preparation:
- Verify hardware meets or exceeds recommended specifications
- Update Windows and all drivers
- Disable unnecessary startup programs
- Create system restore point
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Revit Installation:
- Install Revit 2016 normally (first instance)
- For second instance, consider:
- Installing to different directory
- Using different Windows user profile
- Portable installation (advanced)
- Apply all available updates and hotfixes
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Configuration:
- Set different workspace locations for each instance
- Configure unique shortcuts for easy launching
- Adjust graphics settings based on GPU capabilities
- Set process priorities in Task Manager
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Testing:
- Launch both instances with small test projects
- Monitor resource usage in Task Manager
- Test common workflows (modeling, rendering, printing)
- Verify file saving/opening operations
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Optimization:
- Adjust Windows performance settings
- Configure page file size
- Set power plan to “High Performance”
- Disable unnecessary visual effects
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Backup and Recovery:
- Implement regular backup procedure
- Create system image backup
- Document configuration settings
- Prepare troubleshooting checklist
Advanced Techniques for Power Users
For experienced users seeking to maximize dual-instance performance:
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Process Affinity Management:
- Use Task Manager to assign specific CPU cores to each Revit instance
- Prevents CPU contention between processes
- Requires understanding of your CPU’s core/thread configuration
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Memory Optimization:
- Use Windows System Configuration to limit maximum memory for each instance
- Prevents one instance from starving the other of RAM
- Requires careful calculation based on project sizes
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Custom Revit.ini Settings:
- Modify graphics and performance settings in Revit.ini file
- Can improve stability with dual instances
- Requires backup of original file before modifications
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Network Optimization:
- Configure QoS settings for Revit network traffic
- Prioritize Revit-related network packets
- Helpful when working with cloud services or network drives
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Automation Scripts:
- Create batch files to launch instances with specific settings
- Automate resource allocation based on project type
- Can include pre-launch system optimization commands
Troubleshooting Common Issues
When problems arise with dual Revit 2016 instances:
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Instance Crashes on Launch:
- Check for conflicting add-ins
- Run Revit with /resetprofile switch
- Verify sufficient virtual memory is available
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Performance Degradation Over Time:
- Monitor for memory leaks
- Restart instances periodically
- Check for fragmented project files
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File Corruption Issues:
- Implement regular audit checks
- Use “Detach from Central” carefully
- Maintain backup of central files
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License Activation Problems:
- Verify network connectivity
- Check license manager status
- Consider offline activation if needed
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Graphical Display Issues:
- Update graphics drivers
- Adjust hardware acceleration settings
- Test with different graphics modes
Security Considerations
Running multiple instances of complex software like Revit introduces security considerations:
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Data Protection:
- Ensure both instances have proper file permissions
- Implement access controls for sensitive projects
- Use encryption for confidential files
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Network Security:
- Secure RDP connections if used
- Implement firewall rules for Revit network traffic
- Regularly update security patches
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Software Integrity:
- Verify authenticity of Revit installation files
- Use official Autodesk sources only
- Implement hash verification for downloaded files
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User Authentication:
- Use strong passwords for Autodesk accounts
- Implement two-factor authentication where available
- Regularly review account activity
Future-Proofing Your Setup
As technology evolves, consider these strategies to maintain long-term viability:
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Hardware Upgrades:
- Plan for CPU upgrades (more cores/threads)
- Consider DDR5 RAM for future compatibility
- Evaluate GPU upgrades for real-time rendering
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Software Updates:
- Evaluate newer Revit versions with better multi-instance support
- Consider Autodesk’s cloud-based solutions
- Stay informed about BIM industry trends
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Workflow Optimization:
- Adopt BIM 360/ACC for cloud collaboration
- Implement automation where possible
- Regularly review and update standards
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Training and Skills:
- Invest in advanced Revit training
- Learn Dynamo for automation
- Stay current with BIM methodologies