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--- environment_variables [2019/05/28 16:18]
francisco created
+++ environment_variables [2020/11/18 18:24] (current)
francisco [Environment Variables]
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 Dinamica EGO 5 has the option to configure some environment variables in order to provide some configuration customization. Below, it is provided the environment names with their respectively meaning:
-  * DINAMICA_EGO_5_ALTERNATIVE_PATH_FOR_R: Configure an alternative pathway to the R executable RScript.
+^ Variable Name ^ Description ^
-  * DINAMICA_EGO_5_R_CRAN_MIRROR: Configure the server which is better for you get the R packages.
+| DINAMICA_EGO_5_ALTERNATIVE_PATH_FOR_R | Configure an alternative pathway to the R executable RScript. |
-  * DINAMICA_EGO_5_TEMP_DIR: Configure an alternative pathway that will store the temporary folder and files created into Dinamica's session.
+| DINAMICA_EGO_5_R_CRAN_MIRROR | Configure the server which is better for you get the R packages. |
-  * DINAMICA_EGO_5_GDAL_TOOLS: Configure an alternative pathway with the GDAL utilities requested by Dinamica, those are 'gdal_rasterize', 'gdal_translate' and 'gdalwarp'.
+| DINAMICA_EGO_5_TEMP_DIR | Configure an alternative pathway that will store the temporary folder and files created into Dinamica's session. |
-  * DINAMICA_EGO_5_GDAL_TOOLS_DATA: Configure an alternative pathway with the Data requested by GDAL utilities.
+| DINAMICA_EGO_5_GDAL_TOOLS | Configure an alternative pathway to the GDAL utilities ('gdal_rasterize', 'gdal_translate' and 'gdalwarp') requested by Dinamica. The utilities are used by [[transform_map|Transform Map]] and [[rasterize_shape|Rasterize Shape]] functors |
+| DINAMICA_EGO_5_GDAL_TOOLS_DATA | Configure an alternative pathway to the Data requested by GDAL utilities. |
+| DINAMICA_EGO_5_GDAL_DATA | Configure an alternative pathway to the GDAL Data requested internally by Dinamica. |
+| DINAMICA_EGO_5_MEMORY_ALLOCATION_POLICY | Configure the behavior of Memory Allocation. |
-===== Add environment variable =====
+There is 4 possible Memory Allocation Policy, which are:
+^ Memory Allocation Policy ^ Behavior value ^
+| PREFER_MEMORY: Give allocation priority to memory (RAM) usage, without any control of quantity free memory available in the system. | 0 |
+| BALANCED: Try to keep a balanced level between memory usage allocation and the quantity free memory available in the system. | 1 |
+| PREFER_DISK: Give allocation priority to disk (HD) usage and try to keep as many as possible free memory in the system. | 2 |
+| MEMORY_ONLY: Use only memory to allocate the maps, and report an error if there is no sufficient available free memory in the system. | 3 |
+===== Environment variable Access =====
+==== Windows 10 ====
+Follow these steps in order to access environment variables:
+  * Go into Settings and click on System.
+  * Then on the left side click About and select System info at the bottom.
+  * In the new Control Panel window that opens, click Advanced system settings on the left.
+  * Now in the new window that comes up, select Environment Variables... at the bottom.
+  * Then you will see the environment variables of user and system, and then you will be able to manipulate then, according your user access.
+  * After manipulation, you have to re-open Dinamica to environment changes be applied.
+==== Linux ====
+Linux has a different way to set environment variables. You find [[https://help.ubuntu.com/community/EnvironmentVariables|here]] the fully documentation about environment variables in ubuntu, that is similar in other Linux distributions.
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