Can't work on mac

[Paxa]

I'm trying to compile on mac 10.9

1st problem:

mqueue.c:264:2: error: use of undeclared identifier 'ulong'
        ulong   timeleft = ((ulong)pgstrom_mqueue_timeout) * 1000000UL;
        ^
mqueue.c:285:12: error: use of undeclared identifier 'timeleft'
                else if (timeleft == 0)
                         ^
...

I solve it by adding line in top of mqueue.c:

typedef unsigned long ulong;

---

Next problem was:

opencl_entry.c:20:10: fatal error: 'CL/cl.h' file not found
#include <CL/cl.h>

Solution:

// in opencl_entry.c:20,
// replace #include "CL/cl.h" with following.
#ifdef __APPLE__
    #include "OpenCL/opencl.h"
#else
    #include "CL/cl.h"
#endif

---

Next when I start postgres it says:

FATAL:  could not open OpenCL library: dlopen(libOpenCL.so, 6): image not found

I change opencl_entry.c:

// replace
dlopen("libOpenCL.so", RTLD_NOW | RTLD_LOCAL);
// with
dlopen("/System/Library/Frameworks/OpenCL.framework/Versions/Current/OpenCL", RTLD_NOW | RTLD_LOCAL);

Compile again run it and get segfault:

% postgres -D ./example_db                                                        
LOG:  registering background worker "PG-Strom OpenCL Server"
LOG:  starting background worker process "PG-Strom OpenCL Server"
LOG:  database system was shut down at 2015-01-23 02:10:16 WIB
LOG:  PG-Strom: [0] OpenCL Platform: Apple
LOG:  autovacuum launcher started
LOG:  database system is ready to accept connections
LOG:  OpenCL device has to support cl_khr_fp64 extension
LOG:  worker process: PG-Strom OpenCL Server (PID 68338) was terminated by signal 11: Segmentation fault
LOG:  terminating any other active server processes
WARNING:  terminating connection because of crash of another server process
DETAIL:  The postmaster has commanded this server process to roll back the current transaction and exit, because another server process exited abnormally and possibly corrupted shared memory.
HINT:  In a moment you should be able to reconnect to the database and repeat your command.
LOG:  all server processes terminated; reinitializing
FATAL:  attempt to redefine parameter "pg_strom.enabled_global"

How to solve it?

[kaigai]

First of all, my private branch was no longer maintained.
See, https://github.com/pg-strom/devel

It seems to me your GPU device does not support 64bit floating point data type.
(At least, OpenCL runtime didn't say it is supported)

LOG:  OpenCL device has to support cl_khr_fp64 extension

Sorry, I have no plan to support the hardware without 64bit floating point data type.

Regarding to the server crash, it was bug when OpenCL device lacks capability.
It was fixed on b40daee0ec4068e805f42bd1b44ec89b4e061370

[stenerikbjorling]

Have anyone succesfully compiled pg_strom for OpenCL? If so, are there any clear instructions on this? Want to test both for Nvidia and OpenCL installations for potential project. Take care all, all the best...

Stene

[kaigai]

Please don't use this repository. I've moved the tree to https://github.com/pg-strom/devel .

OpenCL is not supported, therefore, no instructions are available.
If your target is comparison between CUDA and OpenCL, likely, more simple test programs are more suitable.