Are your exr files scanline? I have seen large memory use like this when nuke is caching in tile based exr files.
----- Deke Kincaid Creative Specialist The Foundry Mobile: (310) 883 4313 Tel: (310) 399 4555 - Fax: (310) 450 4516 On Wednesday, June 19, 2013, Ryan O'Phelan wrote: > I'm running out of memory on the farm on one of my comps. > I don't remember running into this kind of thing with a comp of this size > on nuke 6.3x and I'm wondering if I have missed something. > > I've precomped all the branches that I can. > > I've also turned off all postage stamps. > > I've also tried turning down the cache memory usage to 10%, along with > turning all memory settings to very low. > > Renders consistently run out of ram on the farm. The farm nodes have 16GB > RAM. > On my comp station, this comp eats 22GB of RAM, until I clear the buffers. > > > It's a somewhat large comp. 781 nodes. 762 channels. About 75 read nodes > (reads are CG passes) > HD inputs are between 2MB/frame and 8MB/frame > Rendering zip1 16 half EXR > > Environment: > Windows 7 > Nuke 7.0v6 > same config on farm, except 16GB RAM > > > Looking at my buffer report, I'm noticing a large amount of ChannleMerge > nodes reporting memory usage of 300-400MB each. For example: > > ChannelMerge > > total usage: 339MB > > user data: > > cacheRegion 1920x1080 > > channels > > [... lots of channels listed here ...] > > usage 100% > > lossage 19 > > weight 0x0 > > > > another example: > > > ShuffleCopy > > total usage: 247MB > > user data: > > cacheRegion 1928x1088 > > channels > extraTex_vrayUserColor_restaurant01.g,nigel.body,props.dump,lloyd.body,linus,extraTex_vrayUserColor_set03.r,reflect.red,reflect.green,reflect.blue,refract.red,refract.green,refract.blue,specular.red,specular.green,specular.blue,GI.red,GI.green,GI.blue,SSS.r,SSS.g,SSS.b,diffuse.r,diffuse.g,diffuse.b,lighting.red,lighting.green,lighting.blue,extraTex_vrayUserColor_interiors.g,extraTex_vrayUserColor_restaurant02.r,extraTex_vrayUserColor_set01.g,extraTex_vrayUserColor_set01.b,extraTex_vrayUserColor_set02.r,extraTex_vrayUserColor_set02.g,extraTex_vrayUserColor_set03.g,gush.a,normWorld.r,normWorld.g,normWorld.b,gg.body,gg.hair,bldg.green,bldg.blue,bldg.alpha,lloyd.stripe > > usage 100% > > weight 0x0 > > > Is this normal? > > Why are there lots of channels listed in the ChannelMerge node, when it > should only be evaluating two input channels, and outputing one channel? > > > Why is this comp so heavy? > > What am I missing here? > > > Thanks for your help, > > Ryan > > > > > > -- ----- Deke Kincaid Creative Specialist The Foundry Mobile: (310) 883 4313 Tel: (310) 399 4555 - Fax: (310) 450 4516 The Foundry Visionmongers Ltd. Registered in England and Wales No: 4642027
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