ACCEL Flag Description
Lenovo Global Technology ThinkSystem SR670

Base Compiler Invocation

C benchmarks

C++ benchmarks

Base Portability Flags



Some portability flags were found in optimization variables.

Base Optimization Flags

C benchmarks











C++ benchmarks

Base Other Flags

C benchmarks

C++ benchmarks

Implicitly Included Flags

This section contains descriptions of flags that were included implicitly by other flags, but which do not have a permanent home at SPEC.

Shell, Environment, and Other Software Settings

Machine Configurations

BIOS settings

Maximum Performance

Mode will maximize the absolute performance of the system without regard for power. In this mode, power consumption is a don't care. Things like fan speed and heat output of the system may increase in addition to power consumption. Efficiency of the system may go down in this mode, but the absolute performance may increase depending on the workload that is running.


Allows the user to individually modify any of the low-level settings that are preset and unchangeable in any of the other 4 preset modes.


Enabling Hyper-Threading let operating system addresses two virtual or logical cores for a physical presented core. Workloads can be shared between virtual or logical cores when possible. The main function of hyper-threading is to increase the number of independent instructions in the pipeline for using the processor resources more efficiently.


Legacy: When "Legacy" is selected, the operating system initiates the C-state transitions. For E5/E7 CPUs, ACPI C1/C2/C3 map to Intel C1/C3/C6. For 6500/7500 CPUs, ACPI C1/C3 map to Intel C1/C3 (ACPI C2 is not available). Some OS SW may defeat the ACPI mapping (e.g. intel_idle driver). Autonomous: When "Autonomous" is selected, HALT and C1 request get converted to C6 requests in hardware. Disable: When "Disable" is selected, only C0 and C1 are used by the OS. C1 gets enabled automatically when an OS autohalts.

Persistence Mode

A tool for maintaining persistent driver state, specifically for use by the NVIDIA Linux driver. When persistence mode is enabled, the daemon prevents the driver from releasing device state when the device is not in use. This can improve the startup time of new clients in this scenario. Use nvidia-smi -pm 1 to enable persistence mode. Use nvidia-smi -pm 0 to diaable persistence mode.

Flag description origin markings:

[user] Indicates that the flag description came from the user flags file.
[suite] Indicates that the flag description came from the suite-wide flags file.
[benchmark] Indicates that the flag description came from a per-benchmark flags file.

The flags files that were used to format this result can be browsed at,

You can also download the XML flags sources by saving the following links:,

For questions about the meanings of these flags, please contact the tester.
For other inquiries, please contact
Copyright 2015-2019 Standard Performance Evaluation Corporation
Tested with SPEC ACCEL v1.2.
Report generated on Thu Mar 21 11:47:54 2019 by SPEC ACCEL flags formatter v1290.