OS keeps restarting

My OS keeps "Restarting due to a problem". Here is the report:

Interval Since Last Panic Report: 4827 sec

Panics Since Last Report: 1

Anonymous UUID: 07C82D11-347C-31EE-E731-D82FA74787AC

Fri Oct 11 14:29:03 2013

panic(cpu 1 caller 0xffffff7f9933ff1a): "GPU Panic: [<None>] 3 3 7f 0 0 0 0 3 : NVRM[0/1:0:0]: Read Error 0x00000100: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0xd2000000 0xffffff8108029000 0x0a5480a2, D0, P3/4\n"@/SourceCache/AppleGraphicsControl/AppleGraphicsControl-3.4.5/src/AppleM uxControl/kext/GPUPanic.cpp:127

Backtrace (CPU 1), Frame : Return Address

0xffffff8107b329d0 : 0xffffff8017e1d636

0xffffff8107b32a40 : 0xffffff7f9933ff1a

0xffffff8107b32b10 : 0xffffff7f9993026c

0xffffff8107b32bd0 : 0xffffff7f99a031f6

0xffffff8107b32c10 : 0xffffff7f99a03254

0xffffff8107b32c80 : 0xffffff7f99cbc278

0xffffff8107b32db0 : 0xffffff7f99a2bad1

0xffffff8107b32dd0 : 0xffffff7f9993703f

0xffffff8107b32e80 : 0xffffff7f99934ad6

0xffffff8107b33080 : 0xffffff7f999363ff

0xffffff8107b33150 : 0xffffff7f99eab4b6

0xffffff8107b33290 : 0xffffff7f99e698df

0xffffff8107b33c70 : 0xffffff7f99e484fc

0xffffff8107b33de0 : 0xffffff801826deed

0xffffff8107b33e40 : 0xffffff8017e988d4

0xffffff8107b33e80 : 0xffffff8017e20b4d

0xffffff8107b33eb0 : 0xffffff8017e10448

0xffffff8107b33f00 : 0xffffff8017e1961b

0xffffff8107b33f70 : 0xffffff8017ea6546

0xffffff8107b33fb0 : 0xffffff8017ecf473

Kernel Extensions in backtrace:

com.apple.driver.AppleMuxControl(3.4.5)[4F710151-D347-301D-A0BA-81791B3E8D4D]@0 xffffff7f99332000->0xffffff7f99344fff

dependency: com.apple.driver.AppleBacklightExpert(1.0.4)[B5B1F368-132E-3509-9ED5-93270E3ABB DD]@0xffffff7f9932d000

dependency: com.apple.iokit.IOPCIFamily(2.8)[6C1D646D-7E5E-3D7F-A557-2CBA398FF878]@0xffffff 7f98451000

dependency: com.apple.driver.AppleGraphicsControl(3.4.5)[4A2C8548-7EF1-38A9-8817-E8CB34B8DC A6]@0xffffff7f9931e000

dependency: com.apple.iokit.IOACPIFamily(1.4)[A35915E8-C1B0-3C0F-81DF-5515BC9002FC]@0xfffff f7f989a4000

dependency: com.apple.iokit.IONDRVSupport(2.3.7)[F16E015E-1ABE-3C40-AC71-BC54F4BE442E]@0xff ffff7f9930c000

dependency: com.apple.iokit.IOGraphicsFamily(2.3.7)[9928306E-3508-3DBC-80A4-D8F1D87650D7]@0 xffffff7f99275000

com.apple.NVDAResman(8.1.6)[EA4F9902-5AAE-3F1D-A846-3796221C8C91]@0xffffff7f998 cf000->0xffffff7f99b70fff

dependency: com.apple.iokit.IOPCIFamily(2.8)[6C1D646D-7E5E-3D7F-A557-2CBA398FF878]@0xffffff 7f98451000

dependency: com.apple.iokit.IONDRVSupport(2.3.7)[F16E015E-1ABE-3C40-AC71-BC54F4BE442E]@0xff ffff7f9930c000

dependency: com.apple.iokit.IOGraphicsFamily(2.3.7)[9928306E-3508-3DBC-80A4-D8F1D87650D7]@0 xffffff7f99275000

com.apple.nvidia.nv50hal(8.1.6)[3455BCFE-565A-3FE5-9F0B-855BCB6CC9B3]@0xffffff7 f99b71000->0xffffff7f99e44fff

dependency: com.apple.NVDAResman(8.1.6)[EA4F9902-5AAE-3F1D-A846-3796221C8C91]@0xffffff7f998 cf000

dependency: com.apple.iokit.IOPCIFamily(2.8)[6C1D646D-7E5E-3D7F-A557-2CBA398FF878]@0xffffff 7f98451000

com.apple.GeForce(8.1.6)[7C67749B-3B6B-38A9-8203-01A139C21895]@0xffffff7f99e450 00->0xffffff7f99f12fff

dependency: com.apple.NVDAResman(8.1.6)[EA4F9902-5AAE-3F1D-A846-3796221C8C91]@0xffffff7f998 cf000

dependency: com.apple.iokit.IONDRVSupport(2.3.7)[F16E015E-1ABE-3C40-AC71-BC54F4BE442E]@0xff ffff7f9930c000

dependency: com.apple.iokit.IOPCIFamily(2.8)[6C1D646D-7E5E-3D7F-A557-2CBA398FF878]@0xffffff 7f98451000

dependency: com.apple.iokit.IOGraphicsFamily(2.3.7)[9928306E-3508-3DBC-80A4-D8F1D87650D7]@0 xffffff7f99275000

BSD process name corresponding to current thread: WindowServer

Mac OS version:

12F45

Kernel version:

Darwin Kernel Version 12.5.0: Sun Sep 29 13:33:47 PDT 2013; root:xnu-2050.48.12~1/RELEASE_X86_64

Kernel UUID: EA38B02E-2B88-309F-BA68-1DE29F605DD8

Kernel slide: 0x0000000017c00000

Kernel text base: 0xffffff8017e00000

System model name: MacBookPro6,2 (Mac-F22586C8)

System uptime in nanoseconds: 4580441124639

last loaded kext at 264899723828: com.apple.filesystems.msdosfs 1.8.1 (addr 0xffffff7f9a017000, size 65536)

last unloaded kext at 325894573320: com.apple.filesystems.msdosfs 1.8.1 (addr 0xffffff7f9a017000, size 57344)

loaded kexts:

com.parallels.kext.prl_vnic 7.0 15106.786747

com.parallels.kext.prl_netbridge 7.0 15106.786747

com.parallels.kext.prl_hid_hook 7.0 15106.786747

com.parallels.kext.prl_hypervisor 7.0 15106.786747

com.parallels.kext.prl_usb_connect 7.0 15106.786747

com.apple.filesystems.smbfs 1.8.4

com.apple.driver.AppleHWSensor 1.9.5d0

com.apple.driver.AudioAUUC 1.60

com.apple.iokit.IOUserEthernet 1.0.0d1

com.apple.driver.AppleUpstreamUserClient 3.5.12

com.apple.driver.AGPM 100.13.12

com.apple.driver.AppleMikeyHIDDriver 124

com.apple.iokit.IOBluetoothSerialManager 4.1.7f4

com.apple.GeForce 8.1.6

com.apple.driver.AppleIntelHDGraphics 8.1.6

com.apple.driver.AppleHDA 2.4.7fc4

com.apple.driver.AppleMikeyDriver 2.4.7fc4

com.apple.Dont_Steal_Mac_OS_X 7.0.0

com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.1.7f4

com.apple.driver.AppleSMCPDRC 1.0.0

com.apple.iokit.AppleBCM5701Ethernet 3.6.2b4

com.apple.driver.AppleSMCLMU 2.0.3d0

com.apple.driver.AirPort.Brcm4331 615.20.17

com.apple.driver.AppleSMBusPCI 1.0.11d1

com.apple.driver.AppleLPC 1.6.3

com.apple.driver.AppleMuxControl 3.4.5

com.apple.driver.ApplePolicyControl 3.4.5

com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0

com.apple.driver.AppleMCCSControl 1.1.11

com.apple.driver.AppleIntelHDGraphicsFB 8.1.6

com.apple.driver.SMCMotionSensor 3.0.3d1

com.apple.filesystems.autofs 3.0

com.apple.driver.AppleUSBTCButtons 237.1

com.apple.driver.AppleUSBTCKeyboard 237.1

com.apple.driver.AppleUSBCardReader 3.3.1

com.apple.driver.AppleIRController 320.15

com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1

com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1

com.apple.BootCache 34

com.apple.iokit.SCSITaskUserClient 3.5.6

com.apple.driver.XsanFilter 404

com.apple.iokit.IOAHCIBlockStorage 2.3.5

com.apple.driver.AppleFWOHCI 4.9.9

com.apple.driver.AppleAHCIPort 2.6.6

com.apple.driver.AppleUSBHub 635.4.0

com.apple.driver.AppleUSBEHCI 621.4.6

com.apple.driver.AppleSmartBatteryManager 161.0.0

com.apple.driver.AppleACPIButtons 1.8

com.apple.driver.AppleRTC 1.5

com.apple.driver.AppleHPET 1.8

com.apple.driver.AppleSMBIOS 1.9

com.apple.driver.AppleACPIEC 1.8

com.apple.driver.AppleAPIC 1.7

com.apple.driver.AppleIntelCPUPowerManagementClient 214.0.0

com.apple.nke.applicationfirewall 4.0.39

com.apple.security.quarantine 2.1

com.apple.driver.AppleIntelCPUPowerManagement 214.0.0

com.apple.driver.AppleHIDKeyboard 170.2.4

com.apple.driver.IOBluetoothHIDDriver 4.1.7f4

com.apple.iokit.IOSurface 86.0.4

com.apple.iokit.IOSerialFamily 10.0.6

com.apple.nvidia.nv50hal 8.1.6

com.apple.NVDAResman 8.1.6

com.apple.driver.DspFuncLib 2.4.7fc4

com.apple.iokit.IOAudioFamily 1.9.2fc7

com.apple.kext.OSvKernDSPLib 1.12

com.apple.iokit.IOBluetoothFamily 4.1.7f4

com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.1.7f4

com.apple.iokit.IOEthernetAVBController 1.0.2b1

com.apple.driver.AppleHDAController 2.4.7fc4

com.apple.iokit.IOHDAFamily 2.4.7fc4

com.apple.iokit.IOFireWireIP 2.2.5

com.apple.iokit.IO80211Family 530.5

com.apple.iokit.IONetworkingFamily 3.0

com.apple.driver.AppleBacklightExpert 1.0.4

com.apple.driver.AppleGraphicsControl 3.4.5

com.apple.iokit.IONDRVSupport 2.3.7

com.apple.driver.IOPlatformPluginLegacy 1.0.0

com.apple.driver.IOPlatformPluginFamily 5.4.1d13

com.apple.driver.AppleSMBusController 1.0.11d1

com.apple.iokit.IOGraphicsFamily 2.3.7

com.apple.driver.AppleSMC 3.1.5d4

com.apple.kext.triggers 1.0

com.apple.driver.AppleUSBMultitouch 237.3

com.apple.iokit.IOSCSIBlockCommandsDevice 3.5.6

com.apple.iokit.IOUSBMassStorageClass 3.5.2

com.apple.iokit.IOUSBHIDDriver 623.4.0

com.apple.driver.AppleUSBMergeNub 621.4.6

com.apple.driver.AppleUSBComposite 621.4.0

com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.5.6

com.apple.iokit.IOBDStorageFamily 1.7

com.apple.iokit.IODVDStorageFamily 1.7.1

com.apple.iokit.IOCDStorageFamily 1.7.1

com.apple.iokit.IOAHCISerialATAPI 2.5.5

com.apple.iokit.IOSCSIArchitectureModelFamily 3.5.6

com.apple.iokit.IOFireWireFamily 4.5.5

com.apple.iokit.IOAHCIFamily 2.5.1

com.apple.iokit.IOUSBUserClient 630.4.4

com.apple.iokit.IOUSBFamily 635.4.0

com.apple.driver.AppleEFINVRAM 2.0

com.apple.driver.AppleEFIRuntime 2.0

com.apple.iokit.IOHIDFamily 1.8.1

com.apple.iokit.IOSMBusFamily 1.1

com.apple.security.sandbox 220.3

com.apple.kext.AppleMatch 1.0.0d1

com.apple.security.TMSafetyNet 7

com.apple.driver.DiskImages 345

com.apple.iokit.IOStorageFamily 1.8

com.apple.driver.AppleKeyStore 28.21

com.apple.driver.AppleACPIPlatform 1.8

com.apple.iokit.IOPCIFamily 2.8

com.apple.iokit.IOACPIFamily 1.4

com.apple.kec.corecrypto 1.0

Model: MacBookPro6,2, BootROM MBP61.0057.B0F, 2 processors, Intel Core i5, 2.53 GHz, 8 GB, SMC 1.58f17

Graphics: Intel HD Graphics, Intel HD Graphics, Built-In, 288 MB

Graphics: NVIDIA GeForce GT 330M, NVIDIA GeForce GT 330M, PCIe, 256 MB

Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1067 MHz, 0x0198, 0x393930353432382D3032302E4130304C4620

Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1067 MHz, 0x0198, 0x393930353432382D3032302E4130304C4620

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x93), Broadcom BCM43xx 1.0 (5.106.98.100.17)

Bluetooth: Version 4.1.7f4 12974, 3 service, 21 devices, 3 incoming serial ports

Network Service: AirPort, AirPort, en1

Serial ATA Device: Hitachi HTS545050B9SA02, 500.11 GB

Serial ATA Device: MATSHITADVD-R UJ-898

USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfd100000 / 2

USB Device: hub_device, 0x050d (Belkin Corporation), 0x0234, 0xfd130000 / 5

USB Device: Photosmart C4100 series, 0x03f0 (Hewlett Packard), 0x5711, 0xfd134000 / 6

USB Device: Built-in iSight, apple_vendor_id, 0x8507, 0xfd110000 / 4

USB Device: IR Receiver, apple_vendor_id, 0x8242, 0xfd120000 / 3

USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfa100000 / 2

USB Device: USB Receiver, 0x046d (Logitech Inc.), 0xc52f, 0xfa140000 / 6

USB Device: Internal Memory Card Reader, apple_vendor_id, 0x8403, 0xfa130000 / 5

USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x0236, 0xfa120000 / 4

USB Device: BRCM2070 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 3

USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8218, 0xfa113000 / 8