OpenCL AstroPulse crash after processing completion - write here.


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Message 1333906 - Posted: 2 Feb 2013, 10:21:09 UTC
Last modified: 2 Feb 2013, 10:21:21 UTC

If you see computation errors with OpenCL AstroPulse (AP) application and in stderr of task you see that computations were finished (that is, number of found pulses printed in stderr, counters are printed in stderr and after that debug dump occured), please, report in this thread with relevant pecularities of your setup.

Example of such crash:

(in bold - parts that confirm that scientific processing of task fully completed before crash)

single pulses: 0
repetitive pulses: 30
percent blanked: 9.53
class T_remove_radar: total=3.91e+009, N=1, <>=3.91e+009, min=3.91e+009, max=3.91e+009
class T_main_loop_L1: total=5.04e+013, N=111, <>=4.54e+011, min=4.51e+011, max=4.58e+011
class T_FFT_forward: total=2.64e+010, N=909312, <>=2.91e+004, min=7.58e+003, max=3.25e+007
class T_remove_radar_randomize: total=1.94e+012, N=1817736, <>=1.07e+006, min=2.88e+002, max=2.75e+007
class T_build_chirp_table: total=0.00e+000, N=0, <>=0.00e+000, min=1.84e+019, max=0.00e+000
class T_DataWrite: total=1.82e+009, N=88800, <>=2.05e+004, min=3.27e+003, max=4.65e+005
class T_DataWrite_ns: total=0, N=0, <>=0, min=0 max=0
class T_oclReadBuf: total=3.14e+007, N=909312, <>=3.40e+001, min=2.40e+001, max=3.38e+005
class T_ChirpWrite: total=0.00e+000, N=0, <>=0.00e+000, min=1.84e+019, max=0.00e+000
class T_ChirpWrite_ns: total=0, N=0, <>=0, min=0 max=0
class T_dechirp: total=2.45e+010, N=909312, <>=2.70e+004, min=1.01e+004, max=6.90e+006
class Dechirp_ns: total=0, N=0, <>=0, min=0 max=0
class Half_ns: total=0, N=0, <>=0, min=0 max=0
class T_PC_single_pulse_kernel_FFA_update: total=4.83e+013, N=909312, <>=5.31e+007, min=5.16e+007, max=1.28e+008
class PC_ns: total=0, N=0, <>=0, min=0 max=0
class T_oclReadBuf: total=3.14e+007, N=909312, <>=3.40e+001, min=2.40e+001, max=3.38e+005
class T_oclWriteBuf: total=1.86e+009, N=88800, <>=2.09e+004, min=3.38e+003, max=4.66e+005
class T_FFT_inverse: total=1.12e+010, N=909312, <>=1.23e+004, min=5.61e+003, max=6.87e+006
class T_ffa: total=2.08e+009, N=1, <>=2.08e+009, min=2.08e+009, max=2.08e+009
class T_GPU_buffer_read_backs: total=0, N=0, <>=0, min=0 max=0
OCL_ZERO_COPY USE_OPENCL OPENCL_WRITE USE_INCREASED_PRECISION SMALL_CHIRP_TABLE COMBINED_DECHIRP_KERNEL
rev 1316


Unhandled Exception Detected...

- Unhandled Exception Record -
Reason: Access Violation (0xc0000005) at address 0x0040A1FA read attempt to address 0x00399E0C

Engaging BOINC Windows Runtime Debugger...
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Message 1333931 - Posted: 2 Feb 2013, 12:10:24 UTC

IF you experience this issue please upgrade to these apps:
ATi: https://dl.dropbox.com/u/60381958/AP6_win_x86_SSE2_OpenCL_ATI_r1764.7z
NV: https://dl.dropbox.com/u/60381958/AP6_win_x86_SSE2_OpenCL_NV_r1764.7z

Watch for next message in stderr:

ERROR: some exception inside XXXXXXX, doing hard termination...

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Message 1333981 - Posted: 2 Feb 2013, 15:52:13 UTC

I don't think I've had any crashes with AP before - or if I have, then only very occasionally. What's in the new revisions? Extra debugging info?
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Message 1333983 - Posted: 2 Feb 2013, 16:02:37 UTC - in response to Message 1333981.

I don't think I've had any crashes with AP before - or if I have, then only very occasionally. What's in the new revisions? Extra debugging info?


Only safer app termination.
If you dont experience app crash on exit you dont need to upgrade.

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Message 1334046 - Posted: 2 Feb 2013, 19:12:18 UTC - in response to Message 1333931.

IF you experience this issue please upgrade to these apps:
ATi: https://dl.dropbox.com/u/60381958/AP6_win_x86_SSE2_OpenCL_ATI_r1764.7z
NV: https://dl.dropbox.com/u/60381958/AP6_win_x86_SSE2_OpenCL_NV_r1764.7z

Watch for next message in stderr:
ERROR: some exception inside XXXXXXX, doing hard termination...

Now that these tasks are being rerun and listed as a Success, they will be much more difficult to find. Much more time consuming than just looking for an Error Listing. Do you know if this rerun 'feature' is just in 7.0.45 or are all the newer versions going to be this way? No more wasted time, the days of a wasted task appear to be over. I just installed the new App, should be finished in about 20 minutes. It would be nice if Uploads were working...
:-)

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Message 1334053 - Posted: 2 Feb 2013, 19:37:36 UTC
Last modified: 2 Feb 2013, 19:48:38 UTC

I definitely had two of these, but I reset them and recrunched them with no problems on second run. Validated too.
Was weird error, I thought it was something wrong with my overclocked hardware.

I'm struggling more with the sudden stop of processing(HD 5770). Happens once a day or two. Mostly, it is enough to restart BOINC to get it run again. I even developed special application, which detects which particular GPU is idle, but has AstroPulse process, assigned to it and this application just restarts BOINC. The problem is, these restarts bring me BSOD from time to time, caused by ATI driver. Tried many different APP SDKs, but none solved the problem completely. There even was one task, which stopped being processed no matter now many times I restart BOINC. Just couldn't continue, stops at the same percentage. Rescheduled it to CPU to get it done.

I havent saved anything unfortunately, bcs, as I said, I thought it was solely on my side.
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Message 1334064 - Posted: 2 Feb 2013, 20:22:56 UTC - in response to Message 1334046.

IF you experience this issue please upgrade to these apps:
ATi: https://dl.dropbox.com/u/60381958/AP6_win_x86_SSE2_OpenCL_ATI_r1764.7z
NV: https://dl.dropbox.com/u/60381958/AP6_win_x86_SSE2_OpenCL_NV_r1764.7z

Watch for next message in stderr:
ERROR: some exception inside XXXXXXX, doing hard termination...

Now that these tasks are being rerun and listed as a Success, they will be much more difficult to find. Much more time consuming than just looking for an Error Listing. Do you know if this rerun 'feature' is just in 7.0.45 or are all the newer versions going to be this way? No more wasted time, the days of a wasted task appear to be over. I just installed the new App, should be finished in about 20 minutes. It would be nice if Uploads were working...
:-)


I don't know about what rerun you speaking. What feature? Where it was described ?

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Message 1334067 - Posted: 2 Feb 2013, 20:25:52 UTC - in response to Message 1334053.

I definitely had two of these, but I reset them and recrunched them with no problems on second run. Validated too.
Was weird error, I thought it was something wrong with my overclocked hardware.

I'm struggling more with the sudden stop of processing(HD 5770). Happens once a day or two. Mostly, it is enough to restart BOINC to get it run again. I even developed special application, which detects which particular GPU is idle, but has AstroPulse process, assigned to it and this application just restarts BOINC. The problem is, these restarts bring me BSOD from time to time, caused by ATI driver. Tried many different APP SDKs, but none solved the problem completely. There even was one task, which stopped being processed no matter now many times I restart BOINC. Just couldn't continue, stops at the same percentage. Rescheduled it to CPU to get it done.

I havent saved anything unfortunately, bcs, as I said, I thought it was solely on my side.


Your description of error very similar to what I see when all CPU cores are busy. Do you run with idle core?
Try to free more cores. If enough CPU is free I see no stuck, if not enough - I got such stuck tasks too.
But it's completely different issue, better to discuss it in separate or common release thread, not here.


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Message 1334070 - Posted: 2 Feb 2013, 20:39:52 UTC - in response to Message 1334064.
Last modified: 2 Feb 2013, 20:59:18 UTC

IF you experience this issue please upgrade to these apps:
ATi: https://dl.dropbox.com/u/60381958/AP6_win_x86_SSE2_OpenCL_ATI_r1764.7z
NV: https://dl.dropbox.com/u/60381958/AP6_win_x86_SSE2_OpenCL_NV_r1764.7z

Watch for next message in stderr:
ERROR: some exception inside XXXXXXX, doing hard termination...

Now that these tasks are being rerun and listed as a Success, they will be much more difficult to find. Much more time consuming than just looking for an Error Listing. Do you know if this rerun 'feature' is just in 7.0.45 or are all the newer versions going to be this way? No more wasted time, the days of a wasted task appear to be over. I just installed the new App, should be finished in about 20 minutes. It would be nice if Uploads were working...
:-)


I don't know about what rerun you speaking. What feature? Where it was described ?

I don't see the feature listed either. It began when I installed BOINC 7.0.45 late on the 30th. I probably had around 4 Restarts/Reruns since the 31st. Those are the ones I witnessed, there could be more. Like I said, they will be more difficult to find now, you will have to look at the details of each task. This was the last one, ap_03ja13ai_B2_P0_00302_20130130_18386.wu_1. Apparently, BOINC 7.0.45 does an Auto Restart & Reruns the last minute of the failed task. If you weren't there to see it, you wouldn't know it happened.

Here's another one I just found ap_02ja13ae_B1_P1_00345_20130129_30906.wu_1. There should be a couple more...

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Message 1334074 - Posted: 2 Feb 2013, 21:04:00 UTC - in response to Message 1334070.
Last modified: 2 Feb 2013, 21:04:11 UTC

Thanks for info. And very good feature indeed. To lose complete task when it actually was finished already was not very good.
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Message 1334209 - Posted: 3 Feb 2013, 9:09:11 UTC - in response to Message 1334067.


Try to free more cores. If enough CPU is free I see no stuck, if not enough - I got such stuck tasks too.

I didn't use CPU then, all the 6 logical cores at 4.6 GHz(3930K with HT off) were free.

... not here.

Sure, just a clarification of your last suggestion.
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Message 1334466 - Posted: 4 Feb 2013, 0:24:46 UTC - in response to Message 1334074.

I just had another Restart/Rerun, the first one since installing r1764. Everything went pretty smooth, no problems with the computer not responding during the restart. I found an easy way to locally search for the restarts. Open the stdoutdae.txt file and search for 'Libraries', that word is only used during startup. The Auto Restarts are not preceded by the line "Exit requested by user".

The latest case of Success being snatched from the jaws of defeat; ap_27dc12ad_B0_P0_00280_20130201_19925.wu_1

Of course, if you aren't running at least 7.0.45, defeat will have your Success as a snack...

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Message 1334506 - Posted: 4 Feb 2013, 4:44:17 UTC - in response to Message 1334466.

Hm.... no exception interception occured.
Either C++ exception handling doesn't work there or exception happened besides of watched area.
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Message 1334627 - Posted: 4 Feb 2013, 17:22:03 UTC - in response to Message 1334506.
Last modified: 4 Feb 2013, 18:12:31 UTC

Another 'Restart'. This time the program started having problems with a different active task afterwards. That's the first time a 'Restart' has caused any lingering effects. I had to nuke the nvidia task and have it resent, only way to be sure.

Initialization completed
04-Feb-2013 09:19:54 [SETI@home] Restarting task ap_02ja13ae_B0_P0_00146_20130129_23122.wu_1 using astropulse_v6 version 601 in slot 3
04-Feb-2013 09:19:54 [SETI@home] Restarting task ap_14dc12ac_B5_P0_00190_20130127_05925.wu_1 using astropulse_v6 version 601 in slot 1
04-Feb-2013 09:19:54 [SETI@home] Restarting task ap_16dc12aa_B1_P0_00065_20130127_17705.wu_0 using astropulse_v6 version 604 (opencl_nvidia_100) in slot 2
04-Feb-2013 09:19:54 [SETI@home] Restarting task ap_27dc12ad_B2_P1_00015_20130202_21288.wu_0 using astropulse_v6 version 604 (ati_opencl_100) in slot 0
04-Feb-2013 09:19:54 [SETI@home] Sending scheduler request: To fetch work.
04-Feb-2013 09:19:54 [SETI@home] Requesting new tasks for NVIDIA and ATI
04-Feb-2013 09:19:58 [SETI@home] Scheduler request completed: got 0 new tasks
04-Feb-2013 09:19:58 [SETI@home] Project has no tasks available
04-Feb-2013 09:20:30 [SETI@home] Task ap_16dc12aa_B1_P0_00065_20130127_17705.wu_0 exited with zero status but no 'finished' file
04-Feb-2013 09:20:30 [SETI@home] If this happens repeatedly you may need to reset the project.
04-Feb-2013 09:21:17 [SETI@home] Computation for task ap_27dc12ad_B2_P1_00015_20130202_21288.wu_0 finished
04-Feb-2013 09:21:17 [SETI@home] Starting task ap_27dc12ad_B2_P1_00030_20130202_21288.wu_1 using astropulse_v6 version 604 (ati_opencl_100) in slot 0
04-Feb-2013 09:21:20 [SETI@home] Started upload of ap_27dc12ad_B2_P1_00015_20130202_21288.wu_0_0
04-Feb-2013 09:21:25 [SETI@home] Finished upload of ap_27dc12ad_B2_P1_00015_20130202_21288.wu_0_0
04-Feb-2013 09:25:04 [SETI@home] Sending scheduler request: To fetch work.
04-Feb-2013 09:25:04 [SETI@home] Reporting 1 completed tasks
04-Feb-2013 09:25:04 [SETI@home] Requesting new tasks for ATI
04-Feb-2013 09:25:07 [SETI@home] Scheduler request completed: got 0 new tasks
04-Feb-2013 09:25:07 [SETI@home] Project has no tasks available
04-Feb-2013 09:31:12 [SETI@home] Sending scheduler request: To fetch work.
04-Feb-2013 09:31:12 [SETI@home] Not requesting tasks
04-Feb-2013 09:31:15 [SETI@home] Scheduler request completed
04-Feb-2013 09:31:18 [SETI@home] Restarting task ap_16dc12aa_B1_P0_00065_20130127_17705.wu_0 using astropulse_v6 version 604 (opencl_nvidia_100) in slot 2
04-Feb-2013 09:31:53 [SETI@home] Task ap_16dc12aa_B1_P0_00065_20130127_17705.wu_0 exited with zero status but no 'finished' file
04-Feb-2013 09:31:53 [SETI@home] If this happens repeatedly you may need to reset the project.
04-Feb-2013 09:36:20 [SETI@home] Sending scheduler request: To fetch work.
04-Feb-2013 09:36:20 [SETI@home] Not requesting tasks
04-Feb-2013 09:36:23 [SETI@home] Scheduler request completed
04-Feb-2013 09:41:29 [SETI@home] Sending scheduler request: To fetch work.
04-Feb-2013 09:41:29 [SETI@home] Requesting new tasks for ATI
04-Feb-2013 09:41:32 [SETI@home] Scheduler request completed: got 0 new tasks
04-Feb-2013 09:41:32 [SETI@home] Project has no tasks available
04-Feb-2013 09:41:54 [SETI@home] Restarting task ap_16dc12aa_B1_P0_00065_20130127_17705.wu_0 using astropulse_v6 version 604 (opencl_nvidia_100) in slot 2
04-Feb-2013 09:42:29 [SETI@home] Task ap_16dc12aa_B1_P0_00065_20130127_17705.wu_0 exited with zero status but no 'finished' file...


Latest Debug, ap_27dc12ad_B2_P1_00015_20130202_21288.wu_0

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Message 1334660 - Posted: 4 Feb 2013, 18:42:15 UTC - in response to Message 1334627.

09:21:14 (2264): called boinc_finish


This line absent in crashed version.
Looks like crash in boinc_finish() call, but for some reason it not get intercepted with try/catch block...
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Message 1334665 - Posted: 4 Feb 2013, 18:57:57 UTC - in response to Message 1334660.

The 7.0.45 change log notes a few changes to OpenCL. I didn't have 'Restarts' in 7.0.44, just Computation errors and Invalid results. I kinda like the Valid results, as long as it doesn't cause other problems...

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Message 1334704 - Posted: 4 Feb 2013, 20:47:51 UTC - in response to Message 1334660.

BTW, what do you think this person has found to cause the results listed? Those results are being validated, quite remarkable.

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Message 1335272 - Posted: 6 Feb 2013, 22:27:59 UTC - in response to Message 1334704.

BTW, what do you think this person has found to cause the results listed? Those results are being validated, quite remarkable.

Oh well, it appears all he found was some HTML Error that is listing the CPU Time as Run Time. Unimpressive, to say the least.
I did log one more restart yesterday;
ap_05dc12aa_B5_P1_00070_20130203_17591.wu_0
Another Success! No Invalid Results since updating to 7.0.45, impressive...

Something else impressive is how well Ubuntu 64-bit crunches CPU AstroPulses. My pieced together Linux system is crunching better than a faster Xeon in both 64-bit OSX and 32-bit XP. The 2.8GHz Xeon takes just under 9 hours in OSX and over 10 hours in 32-bit XP. The 2.4GHz Xeon is doing it around the mid-eights in Ubuntu. We need an better CPU AstroPulse App for 32-bit Windows.

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Message 1335289 - Posted: 6 Feb 2013, 23:19:56 UTC

I have been getting a heap of these lately, is this what we are talking about?


Stderr output

<core_client_version>7.0.25</core_client_version>
<![CDATA[
<message>
Maximum elapsed time exceeded
</message>
<stderr_txt>
Number of period iterations for PulseFind setted to:20
Number of app instances per device setted to:1
Running on device number: 0
Priority of worker thread raised successfully
Priority of process adjusted successfully, below normal priority class used
OpenCL platform detected: Advanced Micro Devices, Inc.
BOINC assigns 0 device, slots 0 to 0 (including) will be checked
Used slot is 0; OpenCL-kernels filename : MultiBeam_Kernels_r390.cl
Info : Building Program (clBuildProgram):main kernels: OK code 0

Windows optimized S@H Enhanced application by Alex Kan
Version info: SSE3x (AMD/Intel, Core 2-optimized v8-nographics) V5.13 by Alex Kan
SSE3x Win32 Build 390 , Ported by : Raistmer, JDWhale


SETI7 update by Raistmer

OpenCL version by Raistmer, r390


Build features: SETI7 Non-graphics OpenCL USE_OPENCL_HD5xxx IPP AMD specific USE_SSE3 x86
CPUID: Intel(R) Core(TM) i7-2670QM CPU @ 2.20GHz

Cache: L1=64K L2=256K

CPU features: FPU TSC PAE CMPXCHG8B APIC SYSENTER MTRR CMOV/CCMP MMX FXSAVE/FXRSTOR SSE SSE2 HT SSE3
CPU type 0x46
Number of OpenCL platforms: 1


OpenCL Platform Name: AMD Accelerated Parallel Processing
Number of devices: 1
Max compute units: 6
Max work group size: 256
Max clock frequency: 725Mhz
Max memory allocation: 536870912
Cache type: None
Cache line size: 0
Cache size: 0
Global memory size: 2147483648
Constant buffer size: 65536
Max number of constant args: 8
Local memory type: Scratchpad
Local memory size: 32768
Queue properties:
Out-of-Order: No
Name: Turks
Vendor: Advanced Micro Devices, Inc.
Driver version: CAL 1.4.1523 (VM)
Version: OpenCL 1.1 AMD-APP-SDK-v2.5 (709.2)
Extensions: cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_3d_image_writes cl_khr_byte_addressable_store cl_khr_gl_sharing cl_ext_atomic_counters_32 cl_amd_device_attribute_query cl_amd_vec3 cl_amd_printf cl_amd_media_ops cl_amd_popcnt cl_khr_d3d10_sharing


Work Unit Info:
...............
Credit multiplier is : 2.85
WU true angle range is : 0.440016
Gaussian: peak=3.561896, mean=0.5632654, ChiSq=1.419665, time=71.3, d_freq=1421042252.66,
score=0.3700943, null_hyp=2.27549, chirp=-2.501, fft_len=16k
Spike: peak=24.36603, time=6.711, d_freq=1421039951.26, chirp=-17.502, fft_len=128k
Spike: peak=24.90769, time=6.711, d_freq=1421039951.26, chirp=-17.503, fft_len=128k
Spike: peak=24.20479, time=6.711, d_freq=1421039951.25, chirp=-17.504, fft_len=128k
Gaussian: peak=2.914046, mean=0.4839659, ChiSq=1.30811, time=39.43, d_freq=1421040989.1,
score=1.689201, null_hyp=2.279218, chirp=32.018, fft_len=16k

</stderr_txt>
]]>

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Message 1335317 - Posted: 7 Feb 2013, 0:44:55 UTC - in response to Message 1335289.
Last modified: 7 Feb 2013, 1:40:20 UTC

No, that's not the Error he is looking for...
He is looking for these type of Errors; Computation error...-1073741819 (0xffffffffc0000005) Unknown error number....Invalid

You may be able to solve your Error by adding a Flops entry in your app_info file. Add the line <flops>170000000000</flops> so your entry reads similar to;

<app_name>setiathome_enhanced</app_name>
<version_num>610</version_num>
<platform>windows_intelx86</platform>
<avg_ncpus>0.05</avg_ncpus>
<max_ncpus>0.10</max_ncpus>
<plan_class>ati13ati</plan_class>
<flops>170000000000</flops>
<cmdline>-period_iterations_num 20 -instances_per_device 1</cmdline>
<coproc>
<type>ATI</type>
<count>1</count>
</coproc>


It might work, in your case.

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