Can't reproduce performance #2
Description
I'm trying to reproduce the gensort performance you mention in the Readme. By they way, it would be great to have this running multi-threaded to take advantage of multiple cores.
If I use j1e8.c I get a "Bus error" when trying to sort.
If I use bsort.c or qsort.c I run for >24 hours without finishing.
Worth to mention that when compiling bsort.c I get these warnings:
bsort.c: In function ‘shellsort’:
bsort.c:36:7: warning: passing argument 1 of ‘memcpy’ discards ‘const’ qualifier from pointer target type [enabled by default]
memcpy(a+j_record_size, a+(j-3)_record_size, record_size);
^
In file included from bsort.c:4:0:
/usr/include/string.h:42:14: note: expected ‘void * restrict’ but argument is of type ‘const unsigned char _’
extern void *memcpy (void *__restrict __dest, const void *__restrict __src,
^
bsort.c:38:5: warning: passing argument 1 of ‘memcpy’ discards ‘const’ qualifier from pointer target type [enabled by default]
memcpy(a+j_record_size, &temp, record_size);
^
In file included from bsort.c:4:0:
/usr/include/string.h:42:14: note: expected ‘void * restrict’ but argument is of type ‘const unsigned char _’
extern void *memcpy (void *__restrict __dest, const void *__restrict __src,
^
bsort.c:44:7: warning: passing argument 1 of ‘memcpy’ discards ‘const’ qualifier from pointer target type [enabled by default]
memcpy(a+j_record_size, a+(j-1)_record_size, record_size);
^
In file included from bsort.c:4:0:
/usr/include/string.h:42:14: note: expected ‘void * restrict’ but argument is of type ‘const unsigned char *’
extern void *memcpy (void *__restrict __dest, const void *__restrict __src,
^
bsort.c:46:5: warning: passing argument 1 of ‘memcpy’ discards ‘const’ qualifier from pointer target type [enabled by default]
memcpy(a+j_record_size, &temp, record_size);
^
In file included from bsort.c:4:0:
/usr/include/string.h:42:14: note: expected ‘void * restrict’ but argument is of type ‘const unsigned char *’
extern void *memcpy (void **restrict __dest, const void __restrict __src,
^
bsort.c: In function ‘radixify’:
bsort.c:128:11: warning: passing argument 1 of ‘memcpy’ discards ‘const’ qualifier from pointer target type [enabled by default]
memcpy(&buffer[stack[stack_pointer] * record_size], &buffer[stack[stack_pointer-1] * record_size], record_size);
^
In file included from bsort.c:4:0:
/usr/include/string.h:42:14: note: expected ‘void * __restrict’ but argument is of type ‘const unsigned char *’
extern void *memcpy (void **restrict __dest, const void __restrict __src,
^
bsort.c:131:9: warning: passing argument 1 of ‘memcpy’ discards ‘const’ qualifier from pointer target type [enabled by default]
memcpy(&buffer[stack[0] * record_size], &temp, record_size);
^
In file included from bsort.c:4:0:
/usr/include/string.h:42:14: note: expected ‘void * __restrict’ but argument is of type ‘const unsigned char *’
extern void *memcpy (void *__restrict __dest, const void *__restrict __src,