strange issue of memory converting a raster to a data frame
Hi Sebastiano, Try comparing terra::terraOptions() and terra::mem_info(r) on both systems. Just guessing there but it could be that terra is trying to do everything in memory and failing on your 16GB system, while taking a memory friendly route on your 8GB system. Cheers, Lo?c
From: R-sig-Geo <r-sig-geo-bounces at r-project.org> on behalf of Sebastiano Trevisani <strevisani at iuav.it>
Sent: 23 January 2023 12:30:14
To: r-sig-geo
Subject: [R-sig-Geo] strange issue of memory converting a raster to a data frame
Sent: 23 January 2023 12:30:14
To: r-sig-geo
Subject: [R-sig-Geo] strange issue of memory converting a raster to a data frame
Dear list members, In converting a raster as the one below to a data frame, I have an issue of memory allocation only when I use a specific pc, and in particular the one with more memory. To be more precise (using same version of R 4.2.2 and Terra terra 1.6.47, by means of as.data.frame() function): with a I5 processor with 8Gb of memory, windows 10 it works with a I7 processor with 16gb of memory, windows 11 it doesn't I'm not able to figure out a possible explanation! Any suggestions on what to check? SpatRaster dimensions : 5000, 5000, 18 (nrow, ncol, nlyr) resolution : 30, 30 (x, y) extent : -8526.878, 141473.1, 4110588, 4260588 (xmin, xmax, ymin, ymax) coord. ref. : WGS 84 / UTM zone 45N (EPSG:32645) source : multyMadRes2c.tif Sebastiano * Sebastiano Trevisani, Ph.D.* * Associate Professor* *Applied and Environmental Geology* * https://urldefense.com/v3/__https://orcid.org/0000-0001-8436-7798__;!!DOxrgLBm!H86VAGwO3fNqAu4LS2hmv13aheZ9hGMiMmD7ZTN2sVxV-iuyV04Q_dV_lK5KNQauD3mFclNlC8a2LSlyZehq9YxpzJmj$ <https://urldefense.com/v3/__https://orcid.org/0000-0001-8436-7798__;!!DOxrgLBm!H86VAGwO3fNqAu4LS2hmv13aheZ9hGMiMmD7ZTN2sVxV-iuyV04Q_dV_lK5KNQauD3mFclNlC8a2LSlyZehq9YxpzJmj$ >* *IUAV University of Venice: https://urldefense.com/v3/__http://www.iuav.it__;!!DOxrgLBm!H86VAGwO3fNqAu4LS2hmv13aheZ9hGMiMmD7ZTN2sVxV-iuyV04Q_dV_lK5KNQauD3mFclNlC8a2LSlyZehq9ag_1m0F$ <https://urldefense.com/v3/__http://www.iuav.it/__;!!DOxrgLBm!H86VAGwO3fNqAu4LS2hmv13aheZ9hGMiMmD7ZTN2sVxV-iuyV04Q_dV_lK5KNQauD3mFclNlC8a2LSlyZehq9cV-rY9s$ >* *Address: Dorsoduro 2206, Venice 30123, Italy Tel: +39. 041. 257 1299Mail: strevisani at iuav.it <strevisani at iuav.it> * *"Le opinioni espresse sono riferibili esclusivamente all'autore e non * * riflettono in alcun modo una posizione ufficiale dello IUAV "* *"The views expressed are purely those of the writer and may not in any circumstances be regarded as stating an official position of the IUAV."* [[alternative HTML version deleted]] _______________________________________________ R-sig-Geo mailing list R-sig-Geo at r-project.org https://urldefense.com/v3/__https://stat.ethz.ch/mailman/listinfo/r-sig-geo__;!!DOxrgLBm!H86VAGwO3fNqAu4LS2hmv13aheZ9hGMiMmD7ZTN2sVxV-iuyV04Q_dV_lK5KNQauD3mFclNlC8a2LSlyZehq9ScsuXEI$