Green Hills INTEGRITY-178 tuMP safety-critical real-time software offers support for 11th Gen Intel Core i7

July 12, 2022
11th Gen Intel Core i7 can deliver as much as 40x better performance than traditional safety-certifiable processors when cores are used efficiently.

SANTA BARBARA, Calif. – Green Hills Software in Santa Barbara, Calif., is extending the company's certified multicore support of the INTEGRITY-178 tuMP safety-critical real-time operating system (RTOS) to the 11th Gen Intel Core i7 processor (formerly Tiger Lake).

INTEGRITY-178 tuMP is certified to DO-178C and CAST-32A multicore requirements, and extends the RTOS's support to the latest Intel Core i7 processor, including the AMMP-304-01 mission computer from Mercury Systems.

The 11th Gen Intel Core i7 processor can deliver as much as 40x better performance than traditional safety-certifiable processors when all four processor cores are active and operate efficiently.

Certification to RTCA/DO-178C airworthiness is difficult for multicore processors because of the unpredictable behavior of sharing resource contention among processor cores. Avionics computers certified to DO-178C using other operating systems have only one core active in a multicore processor, with the other cores typically held in reset, Green Hills officials say.

Related: Real-time software boosts mission- and life-critical credibility

The INTEGRITY-178 tuMP high-assurance multicore RTOS supports running a multi-threaded DAL A application across several processor cores in symmetric multi-processing or bound multi-processing configurations. The software also supports the more basic asymmetric multi-processing .

Multicore interference happens when more than one processor core attempts simultaneous access to a shared resource, such as system memory, I/O, or on-chip interconnects.

To ease compliance to CAST-32A, Green Hills provides bandwidth allocation and monitoring functionality in INTEGRITY-178 tuMP so that critical applications get their allocated access to shared resources. This helps systems designers make the most of multicore processor performance while meeting safety and security requirements.

For more information contact Green Hills Software online at

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