I wanted to post this observation to the group to see if I get a hit. I updated Bug #569 today with an additional observation: http://gnuradio.org/redmine/issues/569
Basically, on my ARM target, if I enable cpu core #1 (two cores total), the qa_mpsk_receiver test fails about 1/3rd of the time, when it compares 0.5 to sometimes -.492 or sometimes -.503 (i.e., the sign in the real part of a complex result flipped). If I keep cpu #1 disabled, the test passes every time. Keeping the CPUs limited to their minimum speed does not help. I'm compiling with gcc 4.7.3, and -mcpu=cortex-a15 -mfpu=neon -mvectorize-with-neon-quad -ffast-math -funsafe-loop-optimizations I'll be varying the build flags to see if that makes a difference in the meantime. Regards, Tim _______________________________________________ Discuss-gnuradio mailing list [email protected] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
