Visible to Intel only — GUID: GUID-22041295-DF87-46BF-821E-C8462B7B7AB7
Visible to Intel only — GUID: GUID-22041295-DF87-46BF-821E-C8462B7B7AB7
CPU Roofline Accuracy Presets
For each perspective, Intel® Advisor has several levels of collection accuracy. Each accuracy level is a set of analyses and properties that control what data is collected and the level of collection details. The higher accuracy value you choose, the higher runtime overhead is added.
The following accuracy levels are available:
Comparison / Accuracy Level |
Low |
Medium |
---|---|---|
Overhead |
5 - 10x |
15 - 50x |
Goal |
Analyze how well your application uses memory and compute resources of a CPU and determine the main limiting factor (memory bandwidth or compute capacity) |
Analyze how well your application uses CPU memory at different cache levels in more details |
Analyses |
Survey + Characterization (FLOP) |
Survey + Characterization (Trip Counts and FLOP with call stacks for all memory levels) + Memory Access Patterns |
Result |
Cache-aware CPU Roofline for L1 cache |
Memory-level CPU Roofline with call stacks (for L1, L2, L3, DRAM) Memory Access Patterns |
You can choose custom accuracy and set a custom perspective flow for your application. For more information, see Customize CPU / Memory Roofline Insights Perspective.