That - subject to further checking after more coffee - looks to be properly structured, although I'm still a bit worried about the <platform> tags. Leave them for now while you have work on board.

As you get things sorted out, you should - eventually - remove the first app_version section, which declares the cuda55 executable to be a CPU app. But again, not while you have work on board.

But so far, it looks as if you have only been allocated CPU work - which suggests that possibly BOINC hasn't "requested new work for NVIDIA GPU". Is BOINC reporting successful detection of your GPU at startup, shown in the initial messages in the Event Log? If BOINC doesn't detect the GPU first, it won't request work for the second <app_version>, the one with the cuda55 plan_class.

Here's the startup. On the laptop with the NVS2100M I get CPU + NVIDIA with the same app_info.xml ...

Fri 03 Apr 2015 07:17:00 PM EDT | | Starting BOINC client version 7.2.0 for x86_64-pc-linux-gnu
Fri 03 Apr 2015 07:17:00 PM EDT | | log flags: file_xfer, sched_ops, task, coproc_debug
Fri 03 Apr 2015 07:17:00 PM EDT | | Libraries: libcurl/7.39.0 OpenSSL/1.0.2a zlib/1.2.8
Fri 03 Apr 2015 07:17:00 PM EDT | | Running as a daemon
Fri 03 Apr 2015 07:17:00 PM EDT | | Data directory: /var/lib/boinc
Fri 03 Apr 2015 07:17:00 PM EDT | | Processor: 32 AuthenticAMD AMD Opteron(TM) Processor 6272 [Family 21 Model 1 Stepping 2]
Fri 03 Apr 2015 07:17:00 PM EDT | | Processor features: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid amd_dcm aperfmperf pni pclmulqdq monitor ssse3 cx16 sse4_1 sse4_2 popcnt aes xsave avx lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 nodeid_msr topoext perfctr_core arat cpb hw_pstate npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold
Fri 03 Apr 2015 07:17:00 PM EDT | | OS: Linux: 3.6.11
Fri 03 Apr 2015 07:17:00 PM EDT | | Memory: 62.91 GB physical, 10.00 GB virtual
Fri 03 Apr 2015 07:17:00 PM EDT | | Disk: 126.57 GB total, 95.03 GB free
Fri 03 Apr 2015 07:17:00 PM EDT | | Local time is UTC -4 hours
Fri 03 Apr 2015 07:17:00 PM EDT | | CUDA: NVIDIA GPU 0: Quadro FX 4800 (driver version unknown, CUDA version 6.0, compute capability 1.3, 1536MB, 1469MB available, 694 GFLOPS peak)
Fri 03 Apr 2015 07:17:00 PM EDT | | OpenCL: NVIDIA GPU 0: Quadro FX 4800 (driver version 331.113, device version OpenCL 1.0 CUDA, 1536MB, 1469MB available, 694 GFLOPS peak)
Fri 03 Apr 2015 07:17:00 PM EDT | | NVIDIA library reports 1 GPU
Fri 03 Apr 2015 07:17:00 PM EDT | | No ATI library found
Fri 03 Apr 2015 07:17:00 PM EDT | SETI@home | Found app_info.xml; using anonymous platform
Fri 03 Apr 2015 07:17:00 PM EDT | SETI@home | File referenced in app_info.xml does not exist: libcudart.so.5.0
Fri 03 Apr 2015 07:17:00 PM EDT | SETI@home | File referenced in app_info.xml does not exist: libcufft.so.5.0
Fri 03 Apr 2015 07:17:00 PM EDT | SETI@home | [error] State file error: missing application file libcudart.so.5.0
Fri 03 Apr 2015 07:17:00 PM EDT | | Config: use all coprocessors
Fri 03 Apr 2015 07:17:00 PM EDT | | A new version of BOINC is available. (7.2.42) <a href=http://boinc.berkeley.edu/download.php>Download</a>
Fri 03 Apr 2015 07:17:00 PM EDT | SETI@home | URL http://setiathome.berkeley.edu/; Computer ID 7533120; resource share 100
Fri 03 Apr 2015 07:17:00 PM EDT | SETI@home | General prefs: from SETI@home (last modified 29-Mar-2015 19:11:48)
Fri 03 Apr 2015 07:17:00 PM EDT | SETI@home | Computer location: home
Fri 03 Apr 2015 07:17:00 PM EDT | SETI@home | General prefs: no separate prefs for home; using your defaults
Fri 03 Apr 2015 07:17:00 PM EDT | | Reading preferences override file
Fri 03 Apr 2015 07:17:00 PM EDT | | Preferences:
Fri 03 Apr 2015 07:17:00 PM EDT | | max memory usage when active: 64417.24MB
Fri 03 Apr 2015 07:17:00 PM EDT | | max memory usage when idle: 64417.24MB
Fri 03 Apr 2015 07:17:00 PM EDT | | max disk usage: 1.00GB
Fri 03 Apr 2015 07:17:00 PM EDT | | max CPUs used: 1
Fri 03 Apr 2015 07:17:00 PM EDT | | max download rate: 512000 bytes/sec
Fri 03 Apr 2015 07:17:00 PM EDT | | max upload rate: 51200 bytes/sec
Fri 03 Apr 2015 07:17:00 PM EDT | | (to change preferences, visit a project web site or select Preferences in the Manager)
Fri 03 Apr 2015 07:17:00 PM EDT | | Not using a proxy
Fri 03 Apr 2015 07:17:09 PM EDT | SETI@home | project resumed by user
Fri 03 Apr 2015 07:17:10 PM EDT | SETI@home | Restarting task 20my12aa.29087.4975.438086664199.12.56.vlar_0 using setiathome_v7 version 701 in slot 1
Fri 03 Apr 2015 07:17:51 PM EDT | SETI@home | task 20my12aa.29087.4975.438086664199.12.80.vlar_0 resumed by user

So I have the code running and crunching on my laptop now.. so I'll see how it runs over a couple wu's on there and what happens.

The one static library in /usr/lib64/libboinc.a which was being linked against the Xbranch was dragging in code from the gentoo boinc ebuild.

So I have the code running and crunching on my laptop now.. so I'll see how it runs over a couple wu's on there and what happens.

The one static library in /usr/lib64/libboinc.a which was being linked against the Xbranch was dragging in code from the gentoo boinc ebuild.

So far so good.. one result in and validated.

http://setiathome.berkeley.edu/results.php?hostid=7537109

I've posted my working builds up on Crunchers Anonymous if anyone is interested.

http://www.arkayn.us/forum/index.php?topic=184.0

Thanks Andrew. I'm interested in following up on this sometime.

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"It is often darkest just before it turns completely black."