RAM vs heap
When evaluating memory requirements for aPriori applications, there are two concepts that need to be considered:
• RAM is the total hardware memory installed in the host computer
• Heap is the portion of that memory that is reserved exclusively for aPriori.
There are different heap size requirements and different procedures for adjusting heap size for:
• aPriori Professional in Creo direct integration mode
• aPriori Professional in standalone mode
• aPriori Professional bulk costing
• Cost Insight Admin and Cost Insight Report
For more information about heap memory requirements and how to adjust heap settings, refer to the tables and footnotes on the following pages, and to Chapter 9, “Adjusting Heap Memory” in the aPriori Professional System Administration Guide.
 
Required
Recommended
Operating System
Tested Client Configurations:
Windows 8.1 or 10, 64-bit

Tested Server Configurations:
Microsoft Windows Server 2012 R2, 64-bit2
Microsoft Windows Server 2016, 64-bit2
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RAM
4 GB
12-32GB depending on details of your installation. See What constitutes a "large" or "complex" environment below.
Heap Size
2 GB
4 GB – 8 GB1
Disk Space
3 GB
Depends on details of your installation. See What constitutes a "large" or "complex" environment
below.
Disk drives
HDD (Hard Disk Drive)
SSD (Solid State Drive)
Communication Protocol
TCP/IP
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1 The heap setting should not exceed 60% of available RAM. For information about adjusting heap settings, see the aPriori Professional System Administration Guide or contact aPriori Customer Support.
2 Windows Server tests are performed with Standard Edition, which also validates Datacenter Edition. The following Server Editions are NOT validated: Standard-Core and Nano.