# Point Cloud Densification: An unknown error occured bad allocation **URL:** \ **Category:** PIX4Dmatic\ **Created:** [May 11, 2023, 4:19pm UTC](https://community.pix4d.com/t/point-cloud-densification-an-unknown-error-occured-bad-allocation/26425 "2023-05-11T16:19:17Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![andrei.mirt](https://avatars.discourse-cdn.com/v4/letter/a/ee59a6/32.png) [@andrei.mirt](https://community.pix4d.com/u/andrei.mirt)\ **Post date:** [May 11, 2023, 4:19pm UTC](https://community.pix4d.com/t/point-cloud-densification-an-unknown-error-occured-bad-allocation/26425/1 "2023-05-11T16:19:17Z")
I am trying to run densification on a project with 3250 images. I’m running it on a machine with 24cpus and 110GB RAM. The settings I need to use are: > Algorithm: Hardware accelerated (Nvidia T4 installed) > Image scale: 1/1 > Multiscale: Off (I’d rather have accurate points at the 1/1 scale than more points) > Min matches: 6 ( I care more for accurate positions than more points of lower accuracy) > Noise filter: On > Sky filter: On > **history.p4mpl** > > // Wed May 10 19:33:02 2023 > CommandGraph { > GenerateSkyMasks { > } > GenerateGaPmvsDensePointCloud { > settings.imageDownscaleFactor : 0 > settings.pointDensity : PointDensity.High > settings.minNbrOfMatches : 6 > settings.multiScale : false > settings.denoise : true > settings.skyless : true > resources.useGpu : GpuUsage.Automatic > } > } > // Thu May 11 07:28:01 2023 > SaveProject { > } > // Thu May 11 07:47:55 2023 > CommandGraph { > GenerateSkyMasks { > } > GenerateGaPmvsDensePointCloud { > settings.imageDownscaleFactor : 0 > settings.pointDensity : PointDensity.High > settings.minNbrOfMatches : 6 > settings.multiScale : false > settings.denoise : true > settings.skyless : true > resources.useGpu : GpuUsage.Automatic > } > } > // Thu May 11 15:42:50 2023 > SaveProject { > } After about 4 hours I am getting the following error: ```auto An unknown error occured bad allocation ``` What sucks the most about this error is that none of the 4 hours of work gets saved, so the Densification needs to be restarted from scratch. I read in a different topic that the issue might be that there isn’t enough RAM, but according to the logs below, the RAM utilization was never at higher than 80% and when the error happened it was at about 50%. Does anyone have any idea of what the issue/solution could be? Obviously, I could just try different settings, perhaps lower ones, but unfortunately, I’m not getting good enough results with lower settings, so that’s not a good solution for my situation. Thinking that it may be simply configuration drifting, or a random error, I tried it twice, with almost identical results. Both failed a little bit after 4 hours. > **Log1** > > ```auto > [2023-05-10 19:33:02][00%CPU][11%RAM][Processing] Running > [2023-05-10 19:33:02][00%CPU][11%RAM][Generate sky masks] Running > [2023-05-10 19:33:02][00%CPU][11%RAM][Generate sky masks](Info) All sky masks are available, the sky masks will not be generated again. > [2023-05-10 19:33:02][00%CPU][11%RAM][Generate sky masks] Finished > [2023-05-10 19:33:02][00%CPU][10%RAM][Generate sky masks](Success) Generation of sky masks finished > Processing time 0s > [2023-05-10 19:33:02][00%CPU][11%RAM][Densify sparse point cloud] Running Region of interest: Disabled > Image scale: 1/1 > Multiscale: Disabled > Density: High > Minimum matches: 6 > Noise filter: Enabled > Sky filter: Enabled > [2023-05-10 19:33:03][00%CPU][11%RAM][Densify] Running [free storage: 352.32 GB] > [2023-05-10 19:33:06][08%CPU][13%RAM][Densify](Info) Arguments validated. > [2023-05-10 19:33:06][08%CPU][13%RAM][Densify](Info) running pix4d densify 3.8.2 > [2023-05-10 19:33:06][08%CPU][13%RAM][Densify](Info) densifying from 3250 cameras and 23292230 seeds > [2023-05-10 19:33:06][08%CPU][13%RAM][Densify](Info) Resources: {"gpuMemory":10970431488,"hostMemory":78726930432,"useGPU":true} > [2023-05-10 19:33:06][08%CPU][13%RAM][Densify](Info) Settings: {"depthLimitPercentile":0.949999988079071,"imageScale":0,"limitDepth":true,"minImageSize":512,"minNoMatch":6,"multiScale":false,"partitionInputScene":true,"patchesFiltering":true,"pointDensity":1,"regularizedMultiscale":true,"uniformityThreshold":0.03125,"windowSize":7} > [2023-05-10 19:33:07][08%CPU][13%RAM][Densify](Debug) Parameters: { > "cluster": { > "maxClusterSize": 450, > "minSharedPointCount": 10 > }, > "exp": { > "cellSize": 1, > "filterPatches": true, > "maxProcessingPatchCount": 65536, > "maxSelectionOverlap": 0, > "minExpansionRate": -1.0, > "minFilledCells": 6, > "minProcessingPatchCount": 1024, > "qualityMetrics": "entropyLevel", > "selectionPercentile": 0.75, > "switchToCPUThreshold": 1000 > }, > "filter": { > "maxDepth": 471.6746520996094, > "visibilityFiltering": true > }, > "image": { > "downscalingKernel": [ > 1, > 4, > 6, > 4, > 1 > ], > "softRankFilterWindow": 7 > }, > "init": { > "camSelectionMethod": "first", > "cameraSelectionBatchSize": 9, > "cosMaxAngle": 0.17364817766693041, > "cosMinAngle": 0.9998476951563913, > "entropyThreshold": 0.03125, > "entropyThresholdUpperBound": 0.125, > "maxCandidateRefCam": 5, > "maxProjectionsCount": 9, > "minProjectionsCount": 3, > "regularize": false, > "znccThreshold": 0.699999988079071 > }, > "opt": { > "epsilon": 1e-05, > "finiteDiffEpsilon": 0.0003162277571391314, > "gradTolerance": 1e-06, > "initialTrustRegion": 100.0, > "maxIterations": 10, > "numDiffMethod": "forward", > "paramTolerance": 0.0001 > }, > "score": { > "anchor": "center", > "dMethod": "mad", > "gridSize": 7, > "imageLevel": 0, > "levelsCount": 1, > "marginPixels": 0 > }, > "seedInRoiRatioThreshold": 0.1 > } > > [2023-05-10 19:33:07][08%CPU][13%RAM][Densify](Debug) host memory forecast: 19044.982570 > [2023-05-10 19:33:07][08%CPU][13%RAM][Densify](Info) Checking input seeds reprojections... > [2023-05-10 19:33:12][04%CPU][13%RAM][Densify](Debug) 0.000000% of projections from camera (declared as visible) to seed point are invalid. > [2023-05-10 19:33:12][04%CPU][13%RAM][Densify](Debug) Task: [densification]/[seeds reprojection check] finished. > [2023-05-10 19:33:12][04%CPU][13%RAM][Densify](Info) Checking input seeds reprojections... done > [2023-05-10 19:33:12][04%CPU][13%RAM][Densify](Info) Region-of-interest input filtering... > [2023-05-10 19:33:17][04%CPU][13%RAM][Densify](Debug) Task: [densification]/[region of interest filtering] finished. > [2023-05-10 19:33:17][04%CPU][13%RAM][Densify](Info) Region-of-interest input filtering... done > [2023-05-10 19:33:17][04%CPU][13%RAM][Densify](Info) Create overlapping views camera graph... > [2023-05-10 19:33:29][04%CPU][13%RAM][Densify](Debug) Task: [densification]/[overlapping views camera graph creation] finished. > [2023-05-10 19:33:29][04%CPU][13%RAM][Densify](Info) Create overlapping views camera graph... done > [2023-05-10 19:33:29][04%CPU][13%RAM][Densify](Info) Create global scene... > [2023-05-10 19:33:31][02%CPU][14%RAM][Densify](Debug) Task: [densification]/[global scene creation] finished. > [2023-05-10 19:33:31][02%CPU][14%RAM][Densify](Info) Create global scene... done > [2023-05-10 19:33:31][02%CPU][14%RAM][Densify](Info) creating densification clusters... > [2023-05-10 19:33:39][04%CPU][14%RAM][Densify](Debug) Task: [densification]/[cluster creation] finished. > [2023-05-10 19:33:39][04%CPU][14%RAM][Densify](Info) creating densification clusters... done > [2023-05-10 19:33:39][04%CPU][14%RAM][Densify](Info) Created 8 clusters out of 3250 cameras with cameras counts [418, 418, 416, 415, 399, 396, 394, 394,] (0% overlap) and seeds count [1330308, 1131638, 1294120, 1164313, 1280444, 1372203, 1343523, 1163137,] > > [2023-05-10 19:33:39][04%CPU][14%RAM][Densify](Info) Scene [1/8] extracting initial seed-scene... > [2023-05-10 19:33:39][04%CPU][14%RAM][Densify](Info) Scene [1/8] extracting initial seed-scene... done > [2023-05-10 19:33:39][04%CPU][14%RAM][Densify](Info) Scene [1/8] Extracted initial seed-scene with 418 cameras and 1330308 points. > [2023-05-10 19:33:39][04%CPU][14%RAM][Densify](Info) computing look-up tables... > [2023-05-10 19:33:39][04%CPU][14%RAM][Densify](Info) computing look-up tables... done > [2023-05-10 19:33:39][04%CPU][14%RAM][Densify](Debug) Task: [densification]/[all clusters]/[cluster_0]/[expansion]/[computing LUTs] finished. > [2023-05-10 19:33:39][04%CPU][14%RAM][Densify](Info) loading 418 images... > [2023-05-10 19:35:51][04%CPU][20%RAM][Densify](Info) loading 418 images... done > [2023-05-10 19:35:51][04%CPU][20%RAM][Densify](Debug) Task: [densification]/[all clusters]/[cluster_0]/[expansion]/[loading images] finished. > [2023-05-10 19:35:51][04%CPU][20%RAM][Densify](Info) initializing scene expansion... > [2023-05-10 19:40:06][84%CPU][26%RAM][Densify](Info) initializing scene expansion... done > [2023-05-10 19:40:06][84%CPU][26%RAM][Densify](Debug) Task: [densification]/[all clusters]/[cluster_0]/[expansion]/[seed initialization] finished. > [2023-05-10 19:40:06][84%CPU][26%RAM][Densify](Info) expanding from 1054641 seeds... > [2023-05-10 23:08:22][80%CPU][43%RAM][Densify](Debug) generated 178757451 points, 27.9128% cells filled > filterPatches: 1.1365e+06ms > finalizePatches: 3.0468e+06ms > initializePatches: 3.06575e+06ms > makeNeighborCandidatePatches: 412238ms > optimizePatches: 2.18566e+06ms > outputPatches: 13670.8ms > selectCandidatePatches: 1.68627e+06ms > > maximum number of seeds in queue: 23972818 > > [2023-05-10 23:16:50][04%CPU][53%RAM][Densify](Info) expanding from 1054641 seeds... done > [2023-05-10 23:16:52][04%CPU][53%RAM][Densify](Debug) Task: [densification]/[all clusters]/[cluster_0]/[expansion]/[expansion] finished. > [2023-05-10 23:16:52][04%CPU][53%RAM][Densify](Info) Scene [1/8] expanded to 178757451 points. > [2023-05-10 23:16:52][04%CPU][53%RAM][Densify](Info) filtering 178757451 points... > [2023-05-10 23:37:12][84%CPU][65%RAM][Densify](Debug) Task: [densification]/[all clusters]/[cluster_0]/[post computation]/[filter patches] finished. > [2023-05-10 23:37:12][84%CPU][65%RAM][Densify](Info) filtering 178757451 points... done > [2023-05-10 23:37:12][84%CPU][65%RAM][Densify](Info) colorizing 163194414 points... > [2023-05-10 23:41:31][46%CPU][74%RAM][Densify](Info) colorizing 163194414 points... done > [2023-05-10 23:41:31][46%CPU][74%RAM][Densify](Debug) Task: [densification]/[all clusters]/[cluster_0]/[post computation]/[colorization] finished. > [2023-05-10 23:41:31][46%CPU][74%RAM][Densify](Info) Scene [1/8] colorized 163194414 points. > [2023-05-10 23:41:31][46%CPU][74%RAM][Densify](Info) returning 163194414 generated points... > [2023-05-10 23:43:07][05%CPU][52%RAM][Densify](Info) returning 163194414 generated points... failed > [2023-05-10 23:43:09][17%CPU][35%RAM][Densify](Error) Exception thrown in callback or sink. Re-throwing > [2023-05-10 23:43:09][17%CPU][35%RAM][Densify] Error > [2023-05-10 23:43:11][17%CPU][35%RAM][Densify sparse point cloud](Error) An unknown error occurred > bad allocation > [2023-05-10 23:43:11][17%CPU][35%RAM][Create point cloud] Cancelled > [2023-05-10 23:43:11][17%CPU][35%RAM][Densify sparse point cloud] Error Region of interest: Disabled > Image scale: 1/1 > Multiscale: Disabled > Density: High > Minimum matches: 6 > Noise filter: Enabled > Sky filter: Enabled > [2023-05-10 23:43:11][76%CPU][35%RAM][Densify sparse point cloud](Error) Densification failed > Processing time 4h 10m 8s > [2023-05-10 23:43:15][76%CPU][11%RAM][Processing] Finished > [2023-05-10 23:43:15][76%CPU][11%RAM][Processing] Error > [2023-05-10 23:43:15][76%CPU][11%RAM][Processing](Error) Processing failed > > ``` > **Log2** > > ```auto > [2023-05-11 07:47:55][00%CPU][13%RAM][Processing] Running > [2023-05-11 07:47:55][00%CPU][13%RAM][Generate sky masks] Running > [2023-05-11 07:47:55][00%CPU][13%RAM][Generate sky masks](Info) All sky masks are available, the sky masks will not be generated again. > [2023-05-11 07:47:55][00%CPU][13%RAM][Generate sky masks] Finished > [2023-05-11 07:47:55][00%CPU][12%RAM][Generate sky masks](Success) Generation of sky masks finished > Processing time 0s > [2023-05-11 07:47:55][00%CPU][13%RAM][Densify sparse point cloud] Running Region of interest: Disabled > Image scale: 1/1 > Multiscale: Disabled > Density: High > Minimum matches: 6 > Noise filter: Enabled > Sky filter: Enabled > [2023-05-11 07:47:55][00%CPU][13%RAM][Densify] Running [free storage: 352.31 GB] > [2023-05-11 07:47:59][07%CPU][14%RAM][Densify](Info) Arguments validated. > [2023-05-11 07:47:59][07%CPU][14%RAM][Densify](Info) running pix4d densify 3.8.2 > [2023-05-11 07:47:59][07%CPU][14%RAM][Densify](Info) densifying from 3250 cameras and 23292230 seeds > [2023-05-11 07:47:59][07%CPU][14%RAM][Densify](Info) Resources: {"gpuMemory":11036983296,"hostMemory":77422273536,"useGPU":true} > [2023-05-11 07:47:59][07%CPU][14%RAM][Densify](Info) Settings: {"depthLimitPercentile":0.949999988079071,"imageScale":0,"limitDepth":true,"minImageSize":512,"minNoMatch":6,"multiScale":false,"partitionInputScene":true,"patchesFiltering":true,"pointDensity":1,"regularizedMultiscale":true,"uniformityThreshold":0.03125,"windowSize":7} > [2023-05-11 07:48:00][07%CPU][14%RAM][Densify](Debug) Parameters: { > "cluster": { > "maxClusterSize": 443, > "minSharedPointCount": 10 > }, > "exp": { > "cellSize": 1, > "filterPatches": true, > "maxProcessingPatchCount": 65536, > "maxSelectionOverlap": 0, > "minExpansionRate": -1.0, > "minFilledCells": 6, > "minProcessingPatchCount": 1024, > "qualityMetrics": "entropyLevel", > "selectionPercentile": 0.75, > "switchToCPUThreshold": 1000 > }, > "filter": { > "maxDepth": 471.6746520996094, > "visibilityFiltering": true > }, > "image": { > "downscalingKernel": [ > 1, > 4, > 6, > 4, > 1 > ], > "softRankFilterWindow": 7 > }, > "init": { > "camSelectionMethod": "first", > "cameraSelectionBatchSize": 9, > "cosMaxAngle": 0.17364817766693041, > "cosMinAngle": 0.9998476951563913, > "entropyThreshold": 0.03125, > "entropyThresholdUpperBound": 0.125, > "maxCandidateRefCam": 5, > "maxProjectionsCount": 9, > "minProjectionsCount": 3, > "regularize": false, > "znccThreshold": 0.699999988079071 > }, > "opt": { > "epsilon": 1e-05, > "finiteDiffEpsilon": 0.0003162277571391314, > "gradTolerance": 1e-06, > "initialTrustRegion": 100.0, > "maxIterations": 10, > "numDiffMethod": "forward", > "paramTolerance": 0.0001 > }, > "score": { > "anchor": "center", > "dMethod": "mad", > "gridSize": 7, > "imageLevel": 0, > "levelsCount": 1, > "marginPixels": 0 > }, > "seedInRoiRatioThreshold": 0.1 > } > > [2023-05-11 07:48:00][07%CPU][14%RAM][Densify](Debug) host memory forecast: 18752.513519 > [2023-05-11 07:48:00][07%CPU][14%RAM][Densify](Info) Checking input seeds reprojections... > [2023-05-11 07:48:05][04%CPU][14%RAM][Densify](Debug) 0.000000% of projections from camera (declared as visible) to seed point are invalid. > [2023-05-11 07:48:05][04%CPU][14%RAM][Densify](Debug) Task: [densification]/[seeds reprojection check] finished. > [2023-05-11 07:48:05][04%CPU][14%RAM][Densify](Info) Checking input seeds reprojections... done > [2023-05-11 07:48:05][04%CPU][14%RAM][Densify](Info) Region-of-interest input filtering... > [2023-05-11 07:48:10][04%CPU][14%RAM][Densify](Debug) Task: [densification]/[region of interest filtering] finished. > [2023-05-11 07:48:10][04%CPU][14%RAM][Densify](Info) Region-of-interest input filtering... done > [2023-05-11 07:48:10][04%CPU][14%RAM][Densify](Info) Create overlapping views camera graph... > [2023-05-11 07:48:23][04%CPU][14%RAM][Densify](Debug) Task: [densification]/[overlapping views camera graph creation] finished. > [2023-05-11 07:48:23][04%CPU][14%RAM][Densify](Info) Create overlapping views camera graph... done > [2023-05-11 07:48:23][04%CPU][14%RAM][Densify](Info) Create global scene... > [2023-05-11 07:48:26][02%CPU][15%RAM][Densify](Debug) Task: [densification]/[global scene creation] finished. > [2023-05-11 07:48:26][02%CPU][15%RAM][Densify](Info) Create global scene... done > [2023-05-11 07:48:26][02%CPU][15%RAM][Densify](Info) creating densification clusters... > [2023-05-11 07:48:34][04%CPU][15%RAM][Densify](Debug) Task: [densification]/[cluster creation] finished. > [2023-05-11 07:48:34][04%CPU][15%RAM][Densify](Info) creating densification clusters... done > [2023-05-11 07:48:34][04%CPU][15%RAM][Densify](Info) Created 8 clusters out of 3250 cameras with cameras counts [418, 418, 416, 415, 399, 396, 394, 394,] (0% overlap) and seeds count [1330308, 1131638, 1294120, 1164313, 1280444, 1372203, 1343523, 1163137,] > > [2023-05-11 07:48:34][04%CPU][15%RAM][Densify](Info) Scene [1/8] extracting initial seed-scene... > [2023-05-11 07:48:34][04%CPU][15%RAM][Densify](Info) Scene [1/8] extracting initial seed-scene... done > [2023-05-11 07:48:34][04%CPU][15%RAM][Densify](Info) Scene [1/8] Extracted initial seed-scene with 418 cameras and 1330308 points. > [2023-05-11 07:48:34][04%CPU][15%RAM][Densify](Info) computing look-up tables... > [2023-05-11 07:48:34][04%CPU][15%RAM][Densify](Info) computing look-up tables... done > [2023-05-11 07:48:34][04%CPU][15%RAM][Densify](Debug) Task: [densification]/[all clusters]/[cluster_0]/[expansion]/[computing LUTs] finished. > [2023-05-11 07:48:34][04%CPU][15%RAM][Densify](Info) loading 418 images... > [2023-05-11 07:50:56][04%CPU][21%RAM][Densify](Info) loading 418 images... done > [2023-05-11 07:50:56][04%CPU][21%RAM][Densify](Debug) Task: [densification]/[all clusters]/[cluster_0]/[expansion]/[loading images] finished. > [2023-05-11 07:50:56][04%CPU][21%RAM][Densify](Info) initializing scene expansion... > [2023-05-11 07:55:17][84%CPU][32%RAM][Densify](Info) initializing scene expansion... done > [2023-05-11 07:55:17][84%CPU][32%RAM][Densify](Debug) Task: [densification]/[all clusters]/[cluster_0]/[expansion]/[seed initialization] finished. > [2023-05-11 07:55:17][84%CPU][32%RAM][Densify](Info) expanding from 1054641 seeds... > [2023-05-11 11:32:51][77%CPU][48%RAM][Densify](Debug) generated 178757451 points, 27.9128% cells filled > filterPatches: 1.24237e+06ms > finalizePatches: 3.02307e+06ms > initializePatches: 3.07174e+06ms > makeNeighborCandidatePatches: 428333ms > optimizePatches: 2.18249e+06ms > outputPatches: 13339.6ms > selectCandidatePatches: 2.0886e+06ms > > maximum number of seeds in queue: 23972818 > > [2023-05-11 11:42:05][04%CPU][64%RAM][Densify](Info) expanding from 1054641 seeds... done > [2023-05-11 11:42:06][04%CPU][64%RAM][Densify](Debug) Task: [densification]/[all clusters]/[cluster_0]/[expansion]/[expansion] finished. > [2023-05-11 11:42:06][04%CPU][64%RAM][Densify](Info) Scene [1/8] expanded to 178757451 points. > [2023-05-11 11:42:06][04%CPU][64%RAM][Densify](Info) filtering 178757451 points... > [2023-05-11 12:03:56][85%CPU][81%RAM][Densify](Debug) Task: [densification]/[all clusters]/[cluster_0]/[post computation]/[filter patches] finished. > [2023-05-11 12:03:56][85%CPU][81%RAM][Densify](Info) filtering 178757451 points... done > [2023-05-11 12:03:56][85%CPU][81%RAM][Densify](Info) colorizing 163194414 points... > [2023-05-11 12:08:20][45%CPU][84%RAM][Densify](Info) colorizing 163194414 points... done > [2023-05-11 12:08:20][45%CPU][84%RAM][Densify](Debug) Task: [densification]/[all clusters]/[cluster_0]/[post computation]/[colorization] finished. > [2023-05-11 12:08:20][45%CPU][84%RAM][Densify](Info) Scene [1/8] colorized 163194414 points. > [2023-05-11 12:08:20][45%CPU][84%RAM][Densify](Info) returning 163194414 generated points... > [2023-05-11 12:09:57][06%CPU][52%RAM][Densify](Info) returning 163194414 generated points... failed > [2023-05-11 12:09:57][06%CPU][52%RAM][Densify](Error) Exception thrown in callback or sink. Re-throwing > [2023-05-11 12:09:57][06%CPU][52%RAM][Densify] Error > [2023-05-11 12:09:58][06%CPU][52%RAM][Densify sparse point cloud](Error) An unknown error occurred > bad allocation > [2023-05-11 12:09:58][06%CPU][52%RAM][Create point cloud] Cancelled > [2023-05-11 12:09:58][06%CPU][52%RAM][Densify sparse point cloud] Error Region of interest: Disabled > Image scale: 1/1 > Multiscale: Disabled > Density: High > Minimum matches: 6 > Noise filter: Enabled > Sky filter: Enabled > [2023-05-11 12:09:58][74%CPU][50%RAM][Densify sparse point cloud](Error) Densification failed > Processing time 4h 22m 2s > [2023-05-11 12:10:03][74%CPU][11%RAM][Processing] Finished > [2023-05-11 12:10:03][74%CPU][11%RAM][Processing] Error > [2023-05-11 12:10:03][74%CPU][11%RAM][Processing](Error) Processing failed > > ``` ---
**Author:** ![Chris\_Putnam](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/chris_putnam/32/4946_2.png) [@Chris\_Putnam](https://community.pix4d.com/u/Chris_Putnam)\ **Post date:** [May 11, 2023, 5:12pm UTC](https://community.pix4d.com/t/point-cloud-densification-an-unknown-error-occured-bad-allocation/26425/2 "2023-05-11T17:12:42Z")
@andrei.mirt, I have a 64cpu system with 256 of ram. I can try processing it to quazi-eliminate whether it is or is not a ram issue. Let me know if that’s something that interests you and, if so, send me a link to the images. ---
**Author:** ![andrei.mirt](https://avatars.discourse-cdn.com/v4/letter/a/ee59a6/32.png) [@andrei.mirt](https://community.pix4d.com/u/andrei.mirt)\ **Post date:** [May 11, 2023, 9:18pm UTC](https://community.pix4d.com/t/point-cloud-densification-an-unknown-error-occured-bad-allocation/26425/3 "2023-05-11T21:18:54Z")
@Chris_Putnam I appreciate your offer a lot. I started copying data to a location that I can share. The raw-input is already there, but I’m also copying the pre-calibrated pix4d project, so that you don’t have to do the calibration as well, just the densification. It will probably take a few more hours from now until all the files of the project are there. Actually, ideally, you would try processing on top of this calibration, because I think it may make a difference. Although, these are the only 2 tests I’ve tried with High Density (instead of the Optimal default) for densification, so maybe calibration doesn’t make a difference. I would have tried with more CPUs/RAM, but Google doesn’t want to increase my vCPU quota for cloud processing for now, so I’m a bit stuck. Currently I’m trying again with 156GB of RAM, which is the maximum I can have (the previous tests were with 90GB and 110GB of RAM). Sent you the link in the DM. ---
**Author:** ![Chris\_Putnam](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/chris_putnam/32/4946_2.png) [@Chris\_Putnam](https://community.pix4d.com/u/Chris_Putnam)\ **Post date:** [May 11, 2023, 11:07pm UTC](https://community.pix4d.com/t/point-cloud-densification-an-unknown-error-occured-bad-allocation/26425/4 "2023-05-11T23:07:32Z")
@andrei.mirt, Thank you for including the Matic file. I meant to ask for that. I’ll process it as is, from scratch with your settings and, if need be, completely from scratch as a new file with your preferred settings. I’ll let you know what I find out. I’ll queue the first two options this evening. They shouldn’t take too long to process out. I am downloading the files now. ---
**Author:** ![Rosana\_Lin](https://avatars.discourse-cdn.com/v4/letter/r/71e660/32.png) [@Rosana\_Lin](https://community.pix4d.com/u/Rosana_Lin)\ **Post date:** [May 24, 2023, 5:23am UTC](https://community.pix4d.com/t/point-cloud-densification-an-unknown-error-occured-bad-allocation/26425/5 "2023-05-24T05:23:36Z")
Hi @andrei.mirt If you could share the entire log file that would be very helpful for us to troubleshoot. Based on this error `(Error) Densification failed` I see in the partial logs you shared, some solutions for this issue include: - Depending on the size of the project, the hardware requirement is reached: [Recommended hardware - PIX4Dmatic](https://support.pix4d.com/hc/en-us/articles/360044895711-Recommended-hardware-PIX4Dmatic) - Update GPU driver: [How to update the driver for an NVIDIA graphics card - PIX4Dmapper](https://support.pix4d.com/hc/en-us/articles/208614566-How-to-update-the-driver-for-an-NVIDIA-graphics-card-PIX4Dmapper?source=search) - Ensure there is enough disk space in the hard disk - Ensure the project folder is not opened at the same time - Ensure the project folder + the dataset isn’t on an external drive or a network drive. Just a friendly reminder, we also have a new release of PIX4Dmatic yesterday. You can also try using the latest version. Before installing the latest version, please do a complete uninstall: 1. In the Windows Search, type **Add or remove programs**. 2. Scroll to find **PIX4Dmatic** and click the application. 3. Click **Uninstall**. 4. On the path where PIX4Dmatic was installed (default is _C:\Program Files\Pix4Dmatic_ ), ensure this folder does not exist anymore. If it exists, **DELETE** this Pix4Dmaticfolder. 5. In _C:\Users\Your Username\AppData\Local\pix4d_ , ensure the folder Pix4Dmatic does not exist anymore. If it exists, **DELETE** this Pix4Dmatic folder. 6. In the Windows Search type **regedit** and search for the folder stored in the path: _HKEY\_CURRENT\_USER\Software\Pix4D_ and ensure this folder does not exist anymore. If it exists, **DELETE** this PIX4Dmatic folder. 7. Restart the computer. 8. Reinstall the latest preview version (v1.46.0) of the software: [Technical release notes - PIX4Dmatic](https://support.pix4d.com/hc/en-us/articles/360044709531-Technical-release-notes-PIX4Dmatic?source=search) Best, Rosana (she/her)