-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi Ron, yep, that can be, within kernel-caused and total memory boundaries be configured to your heart's delight:
echo $(( 1024 * 1024 * 1024 )) > /proc/sys/kernel/shmmax to set the maximum size shared mem buffer to 1GB. Greetings, Marcus On 21.10.2014 18:12, Ron Economos wrote: > I'm writing a block that requires a large amount of data to be > processed in one iteration of the work function. If I call > set_output_multiple() with 8100 * 130 = 1053000 items (of > gr_complex), I get the following error: > > gr::vmcircbuf_sysv_shm: shmget(1): Invalid argument > gr::vmcircbuf_sysv_shm: shmget(1): Invalid argument > gr::vmcircbuf_sysv_shm: shmget(1): Invalid argument > gr::buffer::allocate_buffer: failed to allocate buffer of size > 16456 KB gr::vmcircbuf_sysv_shm: shmget(1): Invalid argument > gr::vmcircbuf_sysv_shm: shmget(1): Invalid argument > gr::vmcircbuf_sysv_shm: shmget(1): Invalid argument > gr::buffer::allocate_buffer: failed to allocate buffer of size > 16456 KB terminate called after throwing an instance of > 'std::bad_alloc' what(): std::bad_alloc > > > I realize that 16 Megabytes is a little large, but not > astronomical. The set_output_multiple() function does work fine > with 8100 * 129 = 1044900 items (of gr_complex). > > Is this some hard limitation in the shared memory library, or can > it be overridden somehow? > > best regards, Ron > > _______________________________________________ Discuss-gnuradio > mailing list Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAEBAgAGBQJURoevAAoJEAFxB7BbsDrLZxQH/0L9Eq9YAeSCdkwKcxDtp58l 6kuHH+HZYHodOTxJBqlKG123Avnqr0nzCc13GAOXvRiq8ooVHrsyEOfGQooCzF8o yqlTNQzdxN86blnaW3Gb0BaDfIIvKWF5Q/DJHLagTsLMvKfcYRj7ke7wEge+tflJ YmAhcSUNqhxKyScbCkOShQMsdZcCgeirV0kkFkk2rqdMmdtSOTy7Cs/WMM0UCeP5 zzIuBstRac/7Sax+SY88OF9IUHzlspKzY/MpqDk+RxcHWcA+u+EXBsgO3oSVjRl+ grakLDtJBn5o95YLeRuxdSxHmRDiD6Uvuy/8MLoB78vcMWZi8S70k8SekQU8bAY= =h8wJ -----END PGP SIGNATURE----- _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
