My Ubuntu 14.04 x64 worked fine right from the bat. Then i decided to install Windows as well, and made it dual boot. Bad call. Windows installer trashed my Ubuntu and couldn't login to it anymore. Had to reinstall Ubuntu and recover from backups.
Unfortunately, this time AMD ocl didn't like it. I installed the 2.9,.1 SDK again. At first clinfo worked partially. Could only see my CPU as ocl device. I have a radeon Saphari R290 video card, and my CPU is AMD FX-8320 8-core. Thinking that it could be an installation problem, I removed the /opt/AMDAPPSDK directory and its contents, and reinstalled. I have tried it a few times, but since then clinfo crashes:
DrWho:~/work/radeon/openCL-> clinfo
terminate called after throwing an instance of 'cl::Error'
what(): clGetPlatformIDs
Aborted (core dumped)
ldd shows clinfo linking to the correct libOpenCL.so:
DrWho:~/work/radeon/openCL-> ldd $(which clinfo)
linux-vdso.so.1 => (0x00007fffe2600000)
libOpenCL.so.1 => /opt/AMDAPPSDK-2.9-1/lib/x86_64/libOpenCL.so.1 (0x00007f6b6e4e0000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f6b6e2a0000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f6b6df98000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f6b6dd90000)
libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f6b6db78000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f6b6d7b0000)
/lib64/ld-linux-x86-64.so.2 (0x00007f6b6e6f0000)
nm shows that /opt/AMDAPPSDK-2.9-1/lib/x86_64/libOpenCL.so.1 (0x00007f6b6e4e0000) defines clGetPlatformIDs:
DrWho:~-> nm -D /opt/AMDAPPSDK-2.9-1/lib/x86_64/libOpenCL.so.1 | grep clGetPlatformIDs
0000000000003f00 T clGetPlatformIDs
Finally strace shows that clinfo correctly opens and reads the right libOpenCL.so.1:
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open("/opt/AMDAPPSDK-2.9-1/lib/x86_64/libOpenCL.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0 $\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=27352, ...}) = 0
mmap(NULL, 2122648, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fa6265c0000
mprotect(0x7fa6265c6000, 2097152, PROT_NONE) = 0
mmap(0x7fa6267c6000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6000) = 0x7fa6267c6000
close(3)
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fcntl(0, F_GETFL) = 0x8002 (flags O_RDWR|O_LARGEFILE)
fstat(0, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 0), ...}) = 0
fcntl(1, F_GETFL) = 0x8002 (flags O_RDWR|O_LARGEFILE)
fstat(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 0), ...}) = 0
fcntl(2, F_GETFL) = 0x8002 (flags O_RDWR|O_LARGEFILE)
fstat(2, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 0), ...}) = 0
fcntl(2, F_GETFL) = 0x8002 (flags O_RDWR|O_LARGEFILE)
fstat(2, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 0), ...}) = 0
openat(AT_FDCWD, "/home/nikos/AMDAPPSDK-2.9-1/etc/OpenCL/vendors/", O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
futex(0x7fa6267c6390, FUTEX_WAKE_PRIVATE, 2147483647) = 0
futex(0x7fa625e8d850, FUTEX_WAKE_PRIVATE, 2147483647) = 0
write(2, "terminate called after throwing "..., 48terminate called after throwing an instance of ') = 48
write(2, "cl::Error", 9cl::Error) = 9
write(2, "'\n", 2') = 2
write(2, " what(): ", 11 what(): ) = 11
write(2, "clGetPlatformIDs", 16clGetPlatformIDs) = 16
write(2, "\n", 1) = 1
rt_sigprocmask(SIG_UNBLOCK, [ABRT], NULL, 😎 = 0
tgkill(3200, 3200, SIGABRT) = 0
--- SIGABRT {si_signo=SIGABRT, si_code=SI_TKILL, si_pid=3200, si_uid=1000} ---
+++ killed by SIGABRT (core dumped) +++
Aborted (core dumped)
What is wrong and how can I have clinfo back? Note that hardware or linux distro hasn't changed since last time that it worked without a problem 😞
