Optimized CUDAs on Windows Seven

[Franz]

Hi!
I have intalled boinc on a new windows seven system.
I have problems with optimizerd CUDAs

Host is http://setiathome.berkeley.edu/show_host_detail.php?hostid=5120050

CPU type   GenuineIntel
Intel(R) Core(TM)2 Duo CPU E6750 @ 2.66GHz [x86 Family 6 Model 15 Stepping 11]

Coprocessors   NVIDIA GeForce 8800 GTS (320MB) driver: 19062

Operating System   Microsoft Windows 7
x86 Edition, (06.01.7600.00)

CUDA tasks are in error. See this:
http://setiathome.berkeley.edu/result.php?resultid=1369740071

If the task will be deleted, her is the text
Bye, FF

<core_client_version>6.6.36</core_client_version>
<![CDATA[
<message>
 - exit code -1073741819 (0xc0000005)
</message>
<stderr_txt>
setiathome_CUDA: Found 1 CUDA device(s):
   Device 1 : GeForce 8800 GTS
           totalGlobalMem = 335544320
           sharedMemPerBlock = 16384
           regsPerBlock = 8192
           warpSize = 32
           memPitch = 262144
           maxThreadsPerBlock = 512
           clockRate = 1188000
           totalConstMem = 65536
           major = 1
           minor = 0
           textureAlignment = 256
           deviceOverlap = 0
           multiProcessorCount = 12
setiathome_CUDA: CUDA Device 1 specified, checking...
   Device 1: GeForce 8800 GTS is okay
SETI@home using CUDA accelerated device GeForce 8800 GTS
V12 modification by Raistmer
Priority of worker thread rised successfully
Priority of process adjusted successfully
Total GPU memory 335544320    free GPU memory 209862656
setiathome_enhanced 6.02 Visual Studio/Microsoft C++

Build features: Non-graphics   CUDA    VLAR autokill enabled    FFTW   USE_SSE   x86   
     CPUID: Intel(R) Core(TM)2 Duo CPU     E6750  @ 2.66GHz

     Cache: L1=64K L2=4096K

CPU features: FPU TSC PAE CMPXCHG8B APIC SYSENTER MTRR CMOV/CCMP MMX FXSAVE/FXRSTOR SSE SSE2 HT SSE3
libboinc: 6.3.22

Work Unit Info:
...............
WU true angle range is :  0.888798
After app init: total GPU memory 335544320    free GPU memory 116539392
Cuda error 'cudaMalloc((void**) &dev_flagged' in file 'd:/BoincSeti_Prog/sinbad_repositories/LunaticsUnited/SETI_CUDA_MB_exp/client/cuda/cudaAcceleration.cu' in line 361 : out of memory.
setiathome_CUDA: CUDA runtime ERROR in device memory allocation (Step 1 of 3). Falling back to HOST CPU processing...


Unhandled Exception Detected...

- Unhandled Exception Record -
Reason: Access Violation (0xc0000005) at address 0x726F662F read attempt to address 0x726F662F

Engaging BOINC Windows Runtime Debugger...



********************


BOINC Windows Runtime Debugger Version 6.3.22


Dump Timestamp    : 09/25/09 17:45:01
Install Directory : C:\Program Files\BOINC\
Data Directory    : C:\ProgramData\BOINC
Project Symstore  :
Loaded Library    : C:\Program Files\BOINC\\dbghelp.dll
Loaded Library    : C:\Program Files\BOINC\\symsrv.dll
Loaded Library    : C:\Program Files\BOINC\\srcsrv.dll
LoadLibraryA( C:\Program Files\BOINC\\version.dll ): GetLastError = 126
Loaded Library    : version.dll
Debugger Engine   : 4.0.5.0
Symbol Search Path: C:\ProgramData\BOINC\slots\2;C:\ProgramData\BOINC\projects\setiathome.berkeley.edu;srv*C:\Users\ALESSA~1\AppData\Local\Temp\symbols*http://msdl.microsoft.com/download/symbols;srv*C:\Users\ALESSA~1\AppData\Local\Temp\symbols*http://boinc.berkeley.edu/symstore


ModLoad: 00400000 00448000 C:\ProgramData\BOINC\projects\setiathome.berkeley.edu\MB_6.08_CUDA_V12_VLARKill_FPLim2048.exe (6.2.0.0) (-nosymbols- Symbols Loaded)
    Linked PDB Filename   :
    File Version          : 6.02
    Company Name          : Space Sciences Laboratory
    Product Name          : setiathome_enhanced
    Product Version       : 6.02

ModLoad: 77d20000 0013c000 C:\Windows\SYSTEM32\ntdll.dll (6.1.7600.16385) (PDB Symbols Loaded)
    Linked PDB Filename   : ntdll.pdb
    File Version          : 6.1.7600.16385 (win7_rtm.090713-1255)
    Company Name          : Microsoft Corporation
    Product Name          : Sistema operativo Microsoft� Windows�
    Product Version       : 6.1.7600.16385

ModLoad: 77880000 000d4000 C:\Windows\system32\kernel32.dll (6.1.7600.16385) (PDB Symbols Loaded)
    Linked PDB Filename   : kernel32.pdb
    File Version          : 6.1.7600.16385 (win7_rtm.090713-1255)
    Company Name          : Microsoft Corporation
    Product Name          : Sistema operativo Microsoft� Windows�
    Product Version       : 6.1.7600.16385

ModLoad: 75ef0000 0004a000 C:\Windows\system32\KERNELBASE.dll (6.1.7600.16385) (PDB Symbols Loaded)
    Linked PDB Filename   : kernelbase.pdb
    File Version          : 6.1.7600.16385 (win7_rtm.090713-1255)
    Company Name          : Microsoft Corporation
    Product Name          : Sistema operativo Microsoft� Windows�
    Product Version       : 6.1.7600.16385

ModLoad: 10000000 00048000 C:\ProgramData\BOINC\projects\setiathome.berkeley.edu\cudart.dll (6.14.11.2020) (-exported- Symbols Loaded)
    Linked PDB Filename   :
    File Version          : 6,14,11,2020
    Company Name          : NVIDIA Corporation
    Product Name          : NVIDIA CUDA 2.2 Runtime
    Product Version       : 6,14,11,2020

ModLoad: 00850000 00124000 C:\ProgramData\BOINC\projects\setiathome.berkeley.edu\cufft.dll (6.14.11.2020) (-exported- Symbols Loaded)
    Linked PDB Filename   :
    File Version          : 6,14,11,2020
    Company Name          : NVIDIA Corporation
    Product Name          : NVIDIA CUDA 2.2 FFT Library
    Product Version       : 6,14,11,2020

ModLoad: 00980000 00212000 C:\Windows\system32\nvcuda.dll (8.16.11.9062) (-exported- Symbols Loaded)
    Linked PDB Filename   :
    File Version          : 8.16.11.9062
    Company Name          : NVIDIA Corporation
    Product Name          : NVIDIA CUDA 2.3 driver
    Product Version       : 8.16.11.9062

ModLoad: 766f0000 000c9000 C:\Windows\system32\USER32.dll (6.1.7600.16385) (PDB Symbols Loaded)
    Linked PDB Filename   : user32.pdb
    File Version          : 6.1.7600.16385 (win7_rtm.090713-1255)
    Company Name          : Microsoft Corporation
    Product Name          : Sistema operativo Microsoft� Windows�
    Product Version       : 6.1.7600.16385

ModLoad: 76190000 0004e000 C:\Windows\system32\GDI32.dll (6.1.7600.16385) (PDB Symbols Loaded)
    Linked PDB Filename   : gdi32.pdb
    File Version          : 6.1.7600.16385 (win7_rtm.090713-1255)
    Company Name          : Microsoft Corporation
    Product Name          : Microsoft� Windows� Operating System
    Product Version       : 6.1.7600.16385

ModLoad: 77e80000 0000a000 C:\Windows\system32\LPK.dll (6.1.7600.16385) (PDB Symbols Loaded)
    Linked PDB Filename   : lpk.pdb
    File Version          : 6.1.7600.16385 (win7_rtm.090713-1255)
    Company Name          : Microsoft Corporation
    Product Name          : Microsoft� Windows� Operating System
    Product Version       : 6.1.7600.16385

ModLoad: 77750000 0009d000 C:\Windows\system32\USP10.dll (1.626.7600.16385) (PDB Symbols Loaded)
    Linked PDB Filename   : usp10.pdb
    File Version          : 1.0626.7600.16385 (win7_rtm.090713-1255)
    Company Name          : Microsoft Corporation
    Product Name          : Microsoft(R) Uniscribe Unicode script processor
    Product Version       : 1.0626.7600.16385

ModLoad: 76330000 000ac000 C:\Windows\system32\msvcrt.dll (7.0.7600.16385) (PDB Symbols Loaded)
    Linked PDB Filename   : msvcrt.pdb
    File Version          : 7.0.7600.16385 (win7_rtm.090713-1255)
    Company Name          : Microsoft Corporation
    Product Name          : Microsoft� Windows� Operating System
    Product Version       : 7.0.7600.16385

ModLoad: 765f0000 000a0000 C:\Windows\system32\ADVAPI32.dll (6.1.7600.16385) (PDB Symbols Loaded)
    Linked PDB Filename   : advapi32.pdb
    File Version          : 6.1.7600.16385 (win7_rtm.090713-1255)
    Company Name          : Microsoft Corporation
    Product Name          : Sistema operativo Microsoft� Windows�
    Product Version       : 6.1.7600.16385

ModLoad: 76170000 00019000 C:\Windows\SYSTEM32\sechost.dll (6.1.7600.16385) (PDB Symbols Loaded)
    Linked PDB Filename   : sechost.pdb
    File Version          : 6.1.7600.16385 (win7_rtm.090713-1255)
    Company Name          : Microsoft Corporation
    Product Name          : Microsoft� Windows� Operating System
    Product Version       : 6.1.7600.16385

ModLoad: 77410000 000a1000 C:\Windows\system32\RPCRT4.dll (6.1.7600.16385) (PDB Symbols Loaded)
    Linked PDB Filename   : rpcrt4.pdb
    File Version          : 6.1.7600.16385 (win7_rtm.090713-1255)
    Company Name          : Microsoft Corporation
    Product Name          : Sistema operativo Microsoft� Windows�
    Product Version       : 6.1.7600.16385

ModLoad: 77e60000 0001f000 C:\Windows\system32\IMM32.DLL (6.1.7600.16385) (PDB Symbols Loaded)
    Linked PDB Filename   : imm32.pdb
    File Version          : 6.1.7600.16385 (win7_rtm.090713-1255)
    Company Name          : Microsoft Corporation
    Product Name          : Microsoft� Windows� Operating System
    Product Version       : 6.1.7600.16385

ModLoad: 763f0000 000cc000 C:\Windows\system32\MSCTF.dll (6.1.7600.16385) (PDB Symbols Loaded)
    Linked PDB Filename   : msctf.pdb
    File Version          : 6.1.7600.16385 (win7_rtm.090713-1255)
    Company Name          : Microsoft Corporation
    Product Name          : Sistema operativo Microsoft� Windows�
    Product Version       : 6.1.7600.16385

ModLoad: 6c1b0000 00005000 C:\Windows\system32\avgrsstx.dll (8.5.0.401) (-nosymbols- Symbols Loaded)
    Linked PDB Filename   : d:\build\nightly\sandbox_avg8_vc8_avg85sp2\source\avg8\Release_Unicode_vs80\Win32\avgrsstx.pdb
    File Version          : 8.5.0.401
    Company Name          : AVG Technologies CZ, s.r.o.
    Product Name          : AVG Internet Security
    Product Version       : 8.5.0.401

ModLoad: 033c0000 0010a000 C:\Windows\system32\nvapi.dll (8.16.11.9062) (-exported- Symbols Loaded)
    Linked PDB Filename   : d:\bld\r190_30\drivers\nvapi\_out\win7_x86_release\nvapi.pdb
    File Version          : 8.16.11.9062
    Company Name          : NVIDIA Corporation
    Product Name          : NVIDIA Windows drivers
    Product Version       : 8.16.11.9062

ModLoad: 77bc0000 0015c000 C:\Windows\system32\ole32.dll (6.1.7600.16385) (PDB Symbols Loaded)
    Linked PDB Filename   : ole32.pdb
    File Version          : 6.1.7600.16385 (win7_rtm.090713-1255)
    Company Name          : Microsoft Corporation
    Product Name          : Sistema operativo Microsoft� Windows�
    Product Version       : 6.1.7600.16385

Get Product Name Failed.
ModLoad: 777f0000 0008f000 C:\Windows\system32\OLEAUT32.dll (6.1.7600.16385) (PDB Symbols Loaded)
    Linked PDB Filename   : oleaut32.pdb
    File Version          : 6.1.7600.16385
    Company Name          : Microsoft Corporation
    Product Name          :
    Product Version       : 6.1.7600.16385

ModLoad: 77ef0000 00057000 C:\Windows\system32\SHLWAPI.dll (6.1.7600.16385) (PDB Symbols Loaded)
    Linked PDB Filename   : shlwapi.pdb
    File Version          : 6.1.7600.16385 (win7_rtm.090713-1255)
    Company Name          : Microsoft Corporation
    Product Name          : Sistema operativo Microsoft� Windows�
    Product Version       : 6.1.7600.16385

ModLoad: 767c0000 00c49000 C:\Windows\system32\SHELL32.dll (6.1.7600.16385) (PDB Symbols Loaded)
    Linked PDB Filename   : shell32.pdb
    File Version          : 6.1.7600.16385 (win7_rtm.090713-1255)
    Company Name          : Microsoft Corporation
    Product Name          : Sistema operativo Microsoft� Windows�
    Product Version       : 6.1.7600.16385

ModLoad: 779a0000 0019d000 C:\Windows\system32\SETUPAPI.dll (6.1.7600.16385) (PDB Symbols Loaded)
    Linked PDB Filename   : setupapi.pdb
    File Version          : 6.1.7600.16385 (win7_rtm.090713-1255)
    Company Name          : Microsoft Corporation
    Product Name          : Sistema operativo Microsoft� Windows�
    Product Version       : 6.1.7600.16385

ModLoad: 76060000 00027000 C:\Windows\system32\CFGMGR32.dll (6.1.7600.16385) (PDB Symbols Loaded)
    Linked PDB Filename   : cfgmgr32.pdb
    File Version          : 6.1.7600.16385 (win7_rtm.090713-1255)
    Company Name          : Microsoft Corporation
    Product Name          : Microsoft� Windows� Operating System
    Product Version       : 6.1.7600.16385

ModLoad: 76150000 00012000 C:\Windows\system32\DEVOBJ.dll (6.1.7600.16385) (PDB Symbols Loaded)
    Linked PDB Filename   : devobj.pdb
    File Version          : 6.1.7600.16385 (win7_rtm.090713-1255)
    Company Name          : Microsoft Corporation
    Product Name          : Microsoft� Windows� Operating System
    Product Version       : 6.1.7600.16385

ModLoad: 753b0000 00009000 C:\Windows\system32\VERSION.dll (6.1.7600.16385) (PDB Symbols Loaded)
    Linked PDB Filename   : version.pdb
    File Version          : 6.1.7600.16385 (win7_rtm.090713-1255)
    Company Name          : Microsoft Corporation
    Product Name          : Microsoft� Windows� Operating System
    Product Version       : 6.1.7600.16385

ModLoad: 68350000 00115000 C:\Program Files\BOINC\dbghelp.dll (6.8.4.0) (PDB Symbols Loaded)
    Linked PDB Filename   : dbghelp.pdb
    File Version          : 6.8.0004.0 (debuggers(dbg).070515-1751)
    Company Name          : Microsoft Corporation
    Product Name          : Debugging Tools for Windows(R)
    Product Version       : 6.8.0004.0

ModLoad: 72a50000 00048000 C:\Program Files\BOINC\symsrv.dll (6.8.4.0) (PDB Symbols Loaded)
    Linked PDB Filename   : symsrv.pdb
    File Version          : 6.8.0004.0 (debuggers(dbg).070515-1751)
    Company Name          : Microsoft Corporation
    Product Name          : Debugging Tools for Windows(R)
    Product Version       : 6.8.0004.0

ModLoad: 72ab0000 0003b000 C:\Program Files\BOINC\srcsrv.dll (6.8.4.0) (PDB Symbols Loaded)
    Linked PDB Filename   : srcsrv.pdb
    File Version          : 6.8.0004.0 (debuggers(dbg).070515-1751)
    Company Name          : Microsoft Corporation
    Product Name          : Debugging Tools for Windows(R)
    Product Version       : 6.8.0004.0



*** Dump of the Process Statistics: ***

- I/O Operations Counters -
Read: 0, Write: 0, Other 0

- I/O Transfers Counters -
Read: 0, Write: 0, Other 0

- Paged Pool Usage -
QuotaPagedPoolUsage: 0, QuotaPeakPagedPoolUsage: 0
QuotaNonPagedPoolUsage: 0, QuotaPeakNonPagedPoolUsage: 0

- Virtual Memory Usage -
VirtualSize: 0, PeakVirtualSize: 0

- Pagefile Usage -
PagefileUsage: 0, PeakPagefileUsage: 0

- Working Set Size -
WorkingSetSize: 0, PeakWorkingSetSize: 0, PageFaultCount: 0

*** Dump of thread ID 5488 (state: Initialized): ***

- Information -
Status: Base Priority: Normal, Priority: Normal, , Kernel Time: 0.000000, User Time: 0.000000, Wait Time: 0.000000

- Unhandled Exception Record -
Reason: Access Violation (0xc0000005) at address 0x726F662F read attempt to address 0x726F662F

- Registers -
eax=06230034 ebx=ffffffff ecx=01c97320 edx=021a0034 esi=021a0030 edi=00000000
eip=726f662f esp=0012f60c ebp=06230030
cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00010213

- Callstack -
ChildEBP RetAddr  Args to Child
0012f608 0045eadb 01c97320 021a0034 021a0030 06230034 !+0x0 SymFromAddr(): GetLastError = '126'  SymGetModuleInfo(): GetLastError = '126' Address = '726f662f'
0012f62c 00401f36 0083c1c0 021a0030 06230030 00000003 MB_6.08_CUDA_V12_VLARKill_FPLim!+0x0 SymFromAddr(): GetLastError = '126'  SymGetModuleInfo(): GetLastError = '126' Address = '0045eadb'
0012f664 00519f42 004561b3 00000000 06230030 021a0030 MB_6.08_CUDA_V12_VLARKill_FPLim!+0x0 SymFromAddr(): GetLastError = '126'  SymGetModuleInfo(): GetLastError = '126' Address = '00401f36'
0012f668 004561b3 00000000 06230030 021a0030 00000008 MB_6.08_CUDA_V12_VLARKill_FPLim!+0x0 SymFromAddr(): GetLastError = '126'  SymGetModuleInfo(): GetLastError = '126' Address = '00519f42'
00519f42 bd7fe856 c359ffff c8680c6a e80082fe 00006cba MB_6.08_CUDA_V12_VLARKill_FPLim!+0x0 SymFromAddr(): GetLastError = '126'  SymGetModuleInfo(): GetLastError = '126' Address = '004561b3'
00519f46 c359ffff c8680c6a e80082fe 00006cba 5d89db33 MB_6.08_CUDA_V12_VLARKill_FPLim!+0x0 SymFromAddr(): GetLastError = '126' SymGetLineFromAddr(): GetLastError = '126' SymGetModuleInfo(): GetLastError = '126' Address = 'bd7fe856'
00519f4a c8680c6a e80082fe 00006cba 5d89db33 8bc033e4 MB_6.08_CUDA_V12_VLARKill_FPLim!+0x0 SymFromAddr(): GetLastError = '126' SymGetLineFromAddr(): GetLastError = '126' SymGetModuleInfo(): GetLastError = '126' Address = 'c359ffff'
00519f4e e80082fe 00006cba 5d89db33 8bc033e4 f33b0875 MB_6.08_CUDA_V12_VLARKill_FPLim!+0x0 SymFromAddr(): GetLastError = '126' SymGetLineFromAddr(): GetLastError = '126' SymGetModuleInfo(): GetLastError = '126' Address = 'c8680c6a'
00519f52 00000000 5d89db33 8bc033e4 f33b0875 3bc0950f MB_6.08_CUDA_V12_VLARKill_FPLim!+0x0 SymFromAddr(): GetLastError = '126' SymGetLineFromAddr(): GetLastError = '126' SymGetModuleInfo(): GetLastError = '126' Address = 'e80082fe'

*** Dump of thread ID 4288 (state: Initialized): ***

- Information -
Status: Base Priority: Normal, Priority: Normal, , Kernel Time: 0.000000, User Time: 0.000000, Wait Time: 0.000000

- Registers -
eax=0219f880 ebx=00000000 ecx=00000005 edx=0000007c esi=0219ff48 edi=00000000
eip=77d664f4 esp=0219ff04 ebp=0219ff6c
cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00000206

- Callstack -
ChildEBP RetAddr  Args to Child
0219ff00 77d64c1c 75ef1876 00000000 0219ff48 90ca6ded ntdll!_KiFastSystemCallRet@0+0x0 FPO: [0,0,0]
0219ff04 75ef1876 00000000 0219ff48 90ca6ded 00000000 ntdll!_ZwDelayExecution@8+0x0 FPO: [2,0,0]
0219ff6c 75ef1818 00000064 00000000 0219ff94 0045ca5b KERNELBASE!_SleepEx@8+0x0
0219ff7c 0045ca5b 00000064 00000000 778d1174 00000000 KERNELBASE!_Sleep@4+0x0
0219ff94 77d7b3f5 00000000 74ca233a 00000000 00000000 MB_6.08_CUDA_V12_VLARKill_FPLim!+0x0
0219ffd4 77d7b3c8 0045ca50 00000000 00000000 00000000 ntdll!___RtlUserThreadStart@8+0x0
0219ffec 00000000 0045ca50 00000000 00000000 029b0000 ntdll!__RtlUserThreadStart@8+0x0


*** Debug Message Dump ****


*** Foreground Window Data ***
    Window Name      :
    Window Class     :
    Window Process ID: 0
    Window Thread ID : 0

Exiting...

</stderr_txt>
]]>

[Raistmer]

Total GPU memory 335544320    free GPU memory 209862656

It seems it's too low value.
Try to disable aero or reduce display resolution or color bittness...

BTW, do you have errors with stock CUDA app ?

[Franz]

Total GPU memory 335544320    free GPU memory 209862656

It seems it's too low value.
Try to disable aero or reduce display resolution or color bittness...

BTW, do you have errors with stock CUDA app ?

I don't know. It was a fresh install and the stock apps didn't run. I have stopped before the first start them and I have installed the optimized ones.
The same hardware was working fine yesterday with XP Home.

I Will try, next days, the suggestions you wrote.

FF

[Raistmer]

If it worked fine with XP you almost certainly can blame Aero in Win7. This interface takes lot of GPU memory...
[Watch for free GPU memory in stderr of task. With ~256 it should work, maybe it will start to work even earlier, then you could post what features you disabled to fit CUDA MB in GPU memory under Win7. IMHO this info would be very useful for other participants too.]

[Franz]

Same host some, days ago, with XP Home:

setiathome_CUDA: CUDA Device 1 specified, checking...
   Device 1: GeForce 8800 GTS is okay
SETI@home using CUDA accelerated device GeForce 8800 GTS
V12 modification by Raistmer
Priority of worker thread rised successfully
Priority of process adjusted successfully
Total GPU memory 335216640    free GPU memory 283346688
setiathome_enhanced 6.02 Visual Studio/Microsoft C++

Tomorrrow I'll try to disable aero and I will tell you the effect!
Bye,
FF

[Franz]

Tomorrrow I'll try to disable aero and I will tell you the effect!

Ok. Without AERO CUDA is working.

setiathome_CUDA: CUDA Device 1 specified, checking...
   Device 1: GeForce 8800 GTS is okay
SETI@home using CUDA accelerated device GeForce 8800 GTS
V12 modification by Raistmer
Priority of worker thread rised successfully
Priority of process adjusted successfully
Total GPU memory 335544320    free GPU memory 268029952
setiathome_enhanced 6.02 Visual Studio/Microsoft C++

[Raistmer]

Well, I think it's possible to fine tune Aero by disabling some of effects and leaving most desirable ON if you like.
I found Aero in Win7 much more useful than in Vista. In Vista it's just waste of resources IMO.

[Franz]

Well, I think it's possible to fine tune Aero by disabling some of effects and leaving most desirable ON if you like.
I found Aero in Win7 much more useful than in Vista. In Vista it's just waste of resources IMO.

Ok. Of course disabling totally AERO, the free mem is now  268029952 (was 209862656 with AERO on) and this value is very near to the minimum (256KB) amount of memory. So it's difficult to fine tune.... too much near to the edge, I think.
Bye,
FF

[Josef W. Segur]

The best estimate of the actual required minimum free GPU memory is about 220 MiB, my guess is it's actually 128 MiB plus the 89 MiB the S@H CUDA code actually allocates. That would be 227540992 bytes when multiplied out.

Your "Total GPU memory 335544320    free GPU memory 268029952" says that Win7 is using 64 MiB even without Aero, which seems high to me but I'm a minimalist type     I suppose it indicates you're running at 1600 x 1200 resolution or similar.
                                                                              Joe

[Raistmer]

+it could be background, maybe some animated cursors and so on, windows had many candies even w/o Aero

[MarkJ]

Your "Total GPU memory 335544320    free GPU memory 268029952" says that Win7 is using 64 MiB even without Aero, which seems high to me but I'm a minimalist type     I suppose it indicates you're running at 1600 x 1200 resolution or similar.
                                                                              Joe

We see this on dual GPU setups (GTX295's and dual card setups). It appears that the 1st card allocates 64Mb for something, I assume for communication. It does this even under XP. It seems to be a consistent 64Mb and the 2nd card doesn't appear to lose 64Mb.

We had those hassles in BOINC 6.6.20 (ish) days. Dr A decided they must be different because they report different amounts of memory. BOINC has since been changed to allow +/- 30% variance.

[liath555]

I'm also having problems with the vlarkill files for win7. I have aero and whatnot turned off, and I think I still have above the minimum graphics memory, but I've gotten constant errors. here's the relevant part of my error text.

<core_client_version>6.10.18</core_client_version>
<![CDATA[
<message>
 - exit code -1073741819 (0xc0000005)
</message>
<stderr_txt>
setiathome_CUDA: Found 1 CUDA device(s):
   Device 1 : GeForce 8500 GT
           totalGlobalMem = 268435456
           sharedMemPerBlock = 16384
           regsPerBlock = 8192
           warpSize = 32
           memPitch = 262144
           maxThreadsPerBlock = 512
           clockRate = 918000
           totalConstMem = 65536
           major = 1
           minor = 1
           textureAlignment = 256
           deviceOverlap = 1
           multiProcessorCount = 2
setiathome_CUDA: CUDA Device 1 specified, checking...
   Device 1: GeForce 8500 GT is okay
SETI@home using CUDA accelerated device GeForce 8500 GT
V12 modification by Raistmer
Priority of worker thread rised successfully
Priority of process adjusted successfully
Total GPU memory 268435456    free GPU memory 234024960
setiathome_enhanced 6.02 Visual Studio/Microsoft C++

Build features: Non-graphics   CUDA    VLAR autokill enabled    FFTW   USE_SSE   x86   
     CPUID: Intel(R) Core(TM)2 Quad CPU           @ 2.40GHz

     Cache: L1=64K L2=4096K

CPU features: FPU TSC PAE CMPXCHG8B APIC SYSENTER MTRR CMOV/CCMP MMX FXSAVE/FXRSTOR SSE SSE2 HT SSE3
libboinc: 6.3.22

Work Unit Info:
...............
WU true angle range is :  1.486312
After app init: total GPU memory 268435456    free GPU memory 123924480
Cuda error 'cudaMalloc((void**) &dev_PowerSpectrumSumMax' in file 'd:/BoincSeti_Prog/sinbad_repositories/LunaticsUnited/SETI_CUDA_MB_exp/client/cuda/cudaAcceleration.cu' in line 383 : out of memory.
setiathome_CUDA: CUDA runtime ERROR in device memory allocation (Step 1 of 3). Falling back to HOST CPU processing...

I am running windows 7 ultimate x64. does that version of vlarkill require more video ram than the x86 version? because on xp-32 which I was on a few days ago everything worked just peachy

[Raistmer]

Not CUDA MB, but Windows 7 requires much more GPU memory than XP.
Look at this:
total GPU memory 268435456    free GPU memory 123924480
Your GPU has less than 50% memory free only...

[Josef W. Segur]

Not CUDA MB, but Windows 7 requires much more GPU memory than XP.
Look at this:
total GPU memory 268435456    free GPU memory 123924480
Your GPU has less than 50% memory free only...

Hmm,          Total GPU memory 268435456    free GPU memory 234024960
After app init: total GPU memory 268435456    free GPU memory 123924480

The difference is 105 MiB and used to be 89 MiB, are the new drivers loading more? Perhaps the new larger cufft.dll actually puts that much more kernel stuff on the GPU, or something similar.

From earlier observations it seemed that less than 128 MiB (134217728 bytes) free after initialization was the problem area.
                                                                           Joe

[Raistmer]

What new DLL you refer to? 2.3 or 3.0 ?
From my host:
Total GPU memory 536870912    free GPU memory 492482560
After app init: total GPU memory 536870912    free GPU memory 492482560

     No difference at all.
http://setiathome.berkeley.edu/result.php?resultid=1438996810
CUDA 2.3 + Vista + 190.38 driver